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-rw-r--r--test/CodeGen/X86/MergeConsecutiveStores.ll630
1 files changed, 0 insertions, 630 deletions
diff --git a/test/CodeGen/X86/MergeConsecutiveStores.ll b/test/CodeGen/X86/MergeConsecutiveStores.ll
deleted file mode 100644
index 55ff14988069..000000000000
--- a/test/CodeGen/X86/MergeConsecutiveStores.ll
+++ /dev/null
@@ -1,630 +0,0 @@
-; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx -fixup-byte-word-insts=1 < %s | FileCheck -check-prefix=CHECK -check-prefix=BWON %s
-; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx -fixup-byte-word-insts=0 < %s | FileCheck -check-prefix=CHECK -check-prefix=BWOFF %s
-
-%struct.A = type { i8, i8, i8, i8, i8, i8, i8, i8 }
-%struct.B = type { i32, i32, i32, i32, i32, i32, i32, i32 }
-
-; CHECK-LABEL: merge_const_store:
-; save 1,2,3 ... as one big integer.
-; CHECK: movabsq $578437695752307201
-; CHECK: ret
-define void @merge_const_store(i32 %count, %struct.A* nocapture %p) nounwind uwtable noinline ssp {
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-.lr.ph:
- %i.02 = phi i32 [ %10, %.lr.ph ], [ 0, %0 ]
- %.01 = phi %struct.A* [ %11, %.lr.ph ], [ %p, %0 ]
- %2 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 0
- store i8 1, i8* %2, align 1
- %3 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 1
- store i8 2, i8* %3, align 1
- %4 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 2
- store i8 3, i8* %4, align 1
- %5 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 3
- store i8 4, i8* %5, align 1
- %6 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 4
- store i8 5, i8* %6, align 1
- %7 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 5
- store i8 6, i8* %7, align 1
- %8 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 6
- store i8 7, i8* %8, align 1
- %9 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 7
- store i8 8, i8* %9, align 1
- %10 = add nsw i32 %i.02, 1
- %11 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 1
- %exitcond = icmp eq i32 %10, %count
- br i1 %exitcond, label %._crit_edge, label %.lr.ph
-._crit_edge:
- ret void
-}
-
-; No vectors because we use noimplicitfloat
-; CHECK-LABEL: merge_const_store_no_vec:
-; CHECK-NOT: vmovups
-; CHECK: ret
-define void @merge_const_store_no_vec(i32 %count, %struct.B* nocapture %p) noimplicitfloat{
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-.lr.ph:
- %i.02 = phi i32 [ %10, %.lr.ph ], [ 0, %0 ]
- %.01 = phi %struct.B* [ %11, %.lr.ph ], [ %p, %0 ]
- %2 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 0
- store i32 0, i32* %2, align 4
- %3 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 1
- store i32 0, i32* %3, align 4
- %4 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 2
- store i32 0, i32* %4, align 4
- %5 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 3
- store i32 0, i32* %5, align 4
- %6 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 4
- store i32 0, i32* %6, align 4
- %7 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 5
- store i32 0, i32* %7, align 4
- %8 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 6
- store i32 0, i32* %8, align 4
- %9 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 7
- store i32 0, i32* %9, align 4
- %10 = add nsw i32 %i.02, 1
- %11 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 1
- %exitcond = icmp eq i32 %10, %count
- br i1 %exitcond, label %._crit_edge, label %.lr.ph
-._crit_edge:
- ret void
-}
-
-; Move the constants using a single vector store.
-; CHECK-LABEL: merge_const_store_vec:
-; CHECK: vmovups
-; CHECK: ret
-define void @merge_const_store_vec(i32 %count, %struct.B* nocapture %p) nounwind uwtable noinline ssp {
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-.lr.ph:
- %i.02 = phi i32 [ %10, %.lr.ph ], [ 0, %0 ]
- %.01 = phi %struct.B* [ %11, %.lr.ph ], [ %p, %0 ]
- %2 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 0
- store i32 0, i32* %2, align 4
- %3 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 1
- store i32 0, i32* %3, align 4
- %4 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 2
- store i32 0, i32* %4, align 4
- %5 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 3
- store i32 0, i32* %5, align 4
- %6 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 4
- store i32 0, i32* %6, align 4
- %7 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 5
- store i32 0, i32* %7, align 4
- %8 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 6
- store i32 0, i32* %8, align 4
- %9 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 7
- store i32 0, i32* %9, align 4
- %10 = add nsw i32 %i.02, 1
- %11 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 1
- %exitcond = icmp eq i32 %10, %count
- br i1 %exitcond, label %._crit_edge, label %.lr.ph
-._crit_edge:
- ret void
-}
-
-; Move the first 4 constants as a single vector. Move the rest as scalars.
-; CHECK-LABEL: merge_nonconst_store:
-; CHECK: movl $67305985
-; CHECK: movb
-; CHECK: movw
-; CHECK: movb
-; CHECK: ret
-define void @merge_nonconst_store(i32 %count, i8 %zz, %struct.A* nocapture %p) nounwind uwtable noinline ssp {
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-.lr.ph:
- %i.02 = phi i32 [ %10, %.lr.ph ], [ 0, %0 ]
- %.01 = phi %struct.A* [ %11, %.lr.ph ], [ %p, %0 ]
- %2 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 0
- store i8 1, i8* %2, align 1
- %3 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 1
- store i8 2, i8* %3, align 1
- %4 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 2
- store i8 3, i8* %4, align 1
- %5 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 3
- store i8 4, i8* %5, align 1
- %6 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 4
- store i8 %zz, i8* %6, align 1 ; <----------- Not a const;
- %7 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 5
- store i8 6, i8* %7, align 1
- %8 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 6
- store i8 7, i8* %8, align 1
- %9 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 7
- store i8 8, i8* %9, align 1
- %10 = add nsw i32 %i.02, 1
- %11 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 1
- %exitcond = icmp eq i32 %10, %count
- br i1 %exitcond, label %._crit_edge, label %.lr.ph
-._crit_edge:
- ret void
-}
-
-
-; CHECK-LABEL: merge_loads_i16:
-; load:
-; BWON: movzwl
-; BWOFF: movw
-; store:
-; CHECK: movw
-; CHECK: ret
-define void @merge_loads_i16(i32 %count, %struct.A* noalias nocapture %q, %struct.A* noalias nocapture %p) nounwind uwtable noinline ssp {
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-
-.lr.ph: ; preds = %0
- %2 = getelementptr inbounds %struct.A, %struct.A* %q, i64 0, i32 0
- %3 = getelementptr inbounds %struct.A, %struct.A* %q, i64 0, i32 1
- br label %4
-
-; <label>:4 ; preds = %4, %.lr.ph
- %i.02 = phi i32 [ 0, %.lr.ph ], [ %9, %4 ]
- %.01 = phi %struct.A* [ %p, %.lr.ph ], [ %10, %4 ]
- %5 = load i8, i8* %2, align 1
- %6 = load i8, i8* %3, align 1
- %7 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 0
- store i8 %5, i8* %7, align 1
- %8 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 1
- store i8 %6, i8* %8, align 1
- %9 = add nsw i32 %i.02, 1
- %10 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 1
- %exitcond = icmp eq i32 %9, %count
- br i1 %exitcond, label %._crit_edge, label %4
-
-._crit_edge: ; preds = %4, %0
- ret void
-}
-
-; The loads and the stores are interleaved. Can't merge them.
-; CHECK-LABEL: no_merge_loads:
-; BWON: movzbl
-; BWOFF: movb
-; CHECK: movb
-; BWON: movzbl
-; BWOFF: movb
-; CHECK: movb
-; CHECK: ret
-define void @no_merge_loads(i32 %count, %struct.A* noalias nocapture %q, %struct.A* noalias nocapture %p) nounwind uwtable noinline ssp {
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-
-.lr.ph: ; preds = %0
- %2 = getelementptr inbounds %struct.A, %struct.A* %q, i64 0, i32 0
- %3 = getelementptr inbounds %struct.A, %struct.A* %q, i64 0, i32 1
- br label %a4
-
-a4: ; preds = %4, %.lr.ph
- %i.02 = phi i32 [ 0, %.lr.ph ], [ %a9, %a4 ]
- %.01 = phi %struct.A* [ %p, %.lr.ph ], [ %a10, %a4 ]
- %a5 = load i8, i8* %2, align 1
- %a7 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 0
- store i8 %a5, i8* %a7, align 1
- %a8 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 0, i32 1
- %a6 = load i8, i8* %3, align 1
- store i8 %a6, i8* %a8, align 1
- %a9 = add nsw i32 %i.02, 1
- %a10 = getelementptr inbounds %struct.A, %struct.A* %.01, i64 1
- %exitcond = icmp eq i32 %a9, %count
- br i1 %exitcond, label %._crit_edge, label %a4
-
-._crit_edge: ; preds = %4, %0
- ret void
-}
-
-
-; CHECK-LABEL: merge_loads_integer:
-; load:
-; CHECK: movq
-; store:
-; CHECK: movq
-; CHECK: ret
-define void @merge_loads_integer(i32 %count, %struct.B* noalias nocapture %q, %struct.B* noalias nocapture %p) nounwind uwtable noinline ssp {
- %1 = icmp sgt i32 %count, 0
- br i1 %1, label %.lr.ph, label %._crit_edge
-
-.lr.ph: ; preds = %0
- %2 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 0
- %3 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 1
- br label %4
-
-; <label>:4 ; preds = %4, %.lr.ph
- %i.02 = phi i32 [ 0, %.lr.ph ], [ %9, %4 ]
- %.01 = phi %struct.B* [ %p, %.lr.ph ], [ %10, %4 ]
- %5 = load i32, i32* %2
- %6 = load i32, i32* %3
- %7 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 0
- store i32 %5, i32* %7
- %8 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 1
- store i32 %6, i32* %8
- %9 = add nsw i32 %i.02, 1
- %10 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 1
- %exitcond = icmp eq i32 %9, %count
- br i1 %exitcond, label %._crit_edge, label %4
-
-._crit_edge: ; preds = %4, %0
- ret void
-}
-
-
-; CHECK-LABEL: merge_loads_vector:
-; load:
-; CHECK: movups
-; store:
-; CHECK: movups
-; CHECK: ret
-define void @merge_loads_vector(i32 %count, %struct.B* noalias nocapture %q, %struct.B* noalias nocapture %p) nounwind uwtable noinline ssp {
- %a1 = icmp sgt i32 %count, 0
- br i1 %a1, label %.lr.ph, label %._crit_edge
-
-.lr.ph: ; preds = %0
- %a2 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 0
- %a3 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 1
- %a4 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 2
- %a5 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 3
- br label %block4
-
-block4: ; preds = %4, %.lr.ph
- %i.02 = phi i32 [ 0, %.lr.ph ], [ %c9, %block4 ]
- %.01 = phi %struct.B* [ %p, %.lr.ph ], [ %c10, %block4 ]
- %a7 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 0
- %a8 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 1
- %a9 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 2
- %a10 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 3
- %b1 = load i32, i32* %a2
- %b2 = load i32, i32* %a3
- %b3 = load i32, i32* %a4
- %b4 = load i32, i32* %a5
- store i32 %b1, i32* %a7
- store i32 %b2, i32* %a8
- store i32 %b3, i32* %a9
- store i32 %b4, i32* %a10
- %c9 = add nsw i32 %i.02, 1
- %c10 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 1
- %exitcond = icmp eq i32 %c9, %count
- br i1 %exitcond, label %._crit_edge, label %block4
-
-._crit_edge: ; preds = %4, %0
- ret void
-}
-
-;; On x86, even unaligned copies can be merged to vector ops.
-; CHECK-LABEL: merge_loads_no_align:
-; load:
-; CHECK: vmovups
-; store:
-; CHECK: vmovups
-; CHECK: ret
-define void @merge_loads_no_align(i32 %count, %struct.B* noalias nocapture %q, %struct.B* noalias nocapture %p) nounwind uwtable noinline ssp {
- %a1 = icmp sgt i32 %count, 0
- br i1 %a1, label %.lr.ph, label %._crit_edge
-
-.lr.ph: ; preds = %0
- %a2 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 0
- %a3 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 1
- %a4 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 2
- %a5 = getelementptr inbounds %struct.B, %struct.B* %q, i64 0, i32 3
- br label %block4
-
-block4: ; preds = %4, %.lr.ph
- %i.02 = phi i32 [ 0, %.lr.ph ], [ %c9, %block4 ]
- %.01 = phi %struct.B* [ %p, %.lr.ph ], [ %c10, %block4 ]
- %a7 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 0
- %a8 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 1
- %a9 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 2
- %a10 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 0, i32 3
- %b1 = load i32, i32* %a2, align 1
- %b2 = load i32, i32* %a3, align 1
- %b3 = load i32, i32* %a4, align 1
- %b4 = load i32, i32* %a5, align 1
- store i32 %b1, i32* %a7, align 1
- store i32 %b2, i32* %a8, align 1
- store i32 %b3, i32* %a9, align 1
- store i32 %b4, i32* %a10, align 1
- %c9 = add nsw i32 %i.02, 1
- %c10 = getelementptr inbounds %struct.B, %struct.B* %.01, i64 1
- %exitcond = icmp eq i32 %c9, %count
- br i1 %exitcond, label %._crit_edge, label %block4
-
-._crit_edge: ; preds = %4, %0
- ret void
-}
-
-; Make sure that we merge the consecutive load/store sequence below and use a
-; word (16 bit) instead of a byte copy.
-; CHECK-LABEL: MergeLoadStoreBaseIndexOffset:
-; BWON: movzwl (%{{.*}},%{{.*}}), %e[[REG:[a-z]+]]
-; BWOFF: movw (%{{.*}},%{{.*}}), %[[REG:[a-z]+]]
-; CHECK: movw %[[REG]], (%{{.*}})
-define void @MergeLoadStoreBaseIndexOffset(i64* %a, i8* %b, i8* %c, i32 %n) {
- br label %1
-
-; <label>:1
- %.09 = phi i32 [ %n, %0 ], [ %11, %1 ]
- %.08 = phi i8* [ %b, %0 ], [ %10, %1 ]
- %.0 = phi i64* [ %a, %0 ], [ %2, %1 ]
- %2 = getelementptr inbounds i64, i64* %.0, i64 1
- %3 = load i64, i64* %.0, align 1
- %4 = getelementptr inbounds i8, i8* %c, i64 %3
- %5 = load i8, i8* %4, align 1
- %6 = add i64 %3, 1
- %7 = getelementptr inbounds i8, i8* %c, i64 %6
- %8 = load i8, i8* %7, align 1
- store i8 %5, i8* %.08, align 1
- %9 = getelementptr inbounds i8, i8* %.08, i64 1
- store i8 %8, i8* %9, align 1
- %10 = getelementptr inbounds i8, i8* %.08, i64 2
- %11 = add nsw i32 %.09, -1
- %12 = icmp eq i32 %11, 0
- br i1 %12, label %13, label %1
-
-; <label>:13
- ret void
-}
-
-; Make sure that we merge the consecutive load/store sequence below and use a
-; word (16 bit) instead of a byte copy for complicated address calculation.
-; .
-; CHECK-LABEL: MergeLoadStoreBaseIndexOffsetComplicated:
-; BWON: movzwl (%{{.*}},%{{.*}}), %e[[REG:[a-z]+]]
-; BWOFF: movw (%{{.*}},%{{.*}}), %[[REG:[a-z]+]]
-; CHECK: movw %[[REG]], (%{{.*}})
-define void @MergeLoadStoreBaseIndexOffsetComplicated(i8* %a, i8* %b, i8* %c, i64 %n) {
- br label %1
-
-; <label>:1
- %.09 = phi i64 [ 0, %0 ], [ %13, %1 ]
- %.08 = phi i8* [ %b, %0 ], [ %12, %1 ]
- %2 = load i8, i8* %.08, align 1
- %3 = sext i8 %2 to i64
- %4 = getelementptr inbounds i8, i8* %c, i64 %3
- %5 = load i8, i8* %4, align 1
- %6 = add nsw i64 %3, 1
- %7 = getelementptr inbounds i8, i8* %c, i64 %6
- %8 = load i8, i8* %7, align 1
- %9 = getelementptr inbounds i8, i8* %a, i64 %.09
- store i8 %5, i8* %9, align 1
- %10 = or i64 %.09, 1
- %11 = getelementptr inbounds i8, i8* %a, i64 %10
- store i8 %8, i8* %11, align 1
- %12 = getelementptr inbounds i8, i8* %.08, i64 1
- %13 = add nuw nsw i64 %.09, 2
- %14 = icmp slt i64 %13, %n
- br i1 %14, label %1, label %15
-
-; <label>:15
- ret void
-}
-
-; Make sure that we merge the consecutive load/store sequence below and use a
-; word (16 bit) instead of a byte copy even if there are intermediate sign
-; extensions.
-; CHECK-LABEL: MergeLoadStoreBaseIndexOffsetSext:
-; BWON: movzwl (%{{.*}},%{{.*}}), %e[[REG:[a-z]+]]
-; BWOFF: movw (%{{.*}},%{{.*}}), %[[REG:[a-z]+]]
-; CHECK: movw %[[REG]], (%{{.*}})
-define void @MergeLoadStoreBaseIndexOffsetSext(i8* %a, i8* %b, i8* %c, i32 %n) {
- br label %1
-
-; <label>:1
- %.09 = phi i32 [ %n, %0 ], [ %12, %1 ]
- %.08 = phi i8* [ %b, %0 ], [ %11, %1 ]
- %.0 = phi i8* [ %a, %0 ], [ %2, %1 ]
- %2 = getelementptr inbounds i8, i8* %.0, i64 1
- %3 = load i8, i8* %.0, align 1
- %4 = sext i8 %3 to i64
- %5 = getelementptr inbounds i8, i8* %c, i64 %4
- %6 = load i8, i8* %5, align 1
- %7 = add i64 %4, 1
- %8 = getelementptr inbounds i8, i8* %c, i64 %7
- %9 = load i8, i8* %8, align 1
- store i8 %6, i8* %.08, align 1
- %10 = getelementptr inbounds i8, i8* %.08, i64 1
- store i8 %9, i8* %10, align 1
- %11 = getelementptr inbounds i8, i8* %.08, i64 2
- %12 = add nsw i32 %.09, -1
- %13 = icmp eq i32 %12, 0
- br i1 %13, label %14, label %1
-
-; <label>:14
- ret void
-}
-
-; However, we can only merge ignore sign extensions when they are on all memory
-; computations;
-; CHECK-LABEL: loadStoreBaseIndexOffsetSextNoSex:
-; CHECK-NOT: movw (%{{.*}},%{{.*}}), [[REG:%[a-z]+]]
-; CHECK-NOT: movw [[REG]], (%{{.*}})
-define void @loadStoreBaseIndexOffsetSextNoSex(i8* %a, i8* %b, i8* %c, i32 %n) {
- br label %1
-
-; <label>:1
- %.09 = phi i32 [ %n, %0 ], [ %12, %1 ]
- %.08 = phi i8* [ %b, %0 ], [ %11, %1 ]
- %.0 = phi i8* [ %a, %0 ], [ %2, %1 ]
- %2 = getelementptr inbounds i8, i8* %.0, i64 1
- %3 = load i8, i8* %.0, align 1
- %4 = sext i8 %3 to i64
- %5 = getelementptr inbounds i8, i8* %c, i64 %4
- %6 = load i8, i8* %5, align 1
- %7 = add i8 %3, 1
- %wrap.4 = sext i8 %7 to i64
- %8 = getelementptr inbounds i8, i8* %c, i64 %wrap.4
- %9 = load i8, i8* %8, align 1
- store i8 %6, i8* %.08, align 1
- %10 = getelementptr inbounds i8, i8* %.08, i64 1
- store i8 %9, i8* %10, align 1
- %11 = getelementptr inbounds i8, i8* %.08, i64 2
- %12 = add nsw i32 %.09, -1
- %13 = icmp eq i32 %12, 0
- br i1 %13, label %14, label %1
-
-; <label>:14
- ret void
-}
-
-; PR21711 ( http://llvm.org/bugs/show_bug.cgi?id=21711 )
-define void @merge_vec_element_store(<8 x float> %v, float* %ptr) {
- %vecext0 = extractelement <8 x float> %v, i32 0
- %vecext1 = extractelement <8 x float> %v, i32 1
- %vecext2 = extractelement <8 x float> %v, i32 2
- %vecext3 = extractelement <8 x float> %v, i32 3
- %vecext4 = extractelement <8 x float> %v, i32 4
- %vecext5 = extractelement <8 x float> %v, i32 5
- %vecext6 = extractelement <8 x float> %v, i32 6
- %vecext7 = extractelement <8 x float> %v, i32 7
- %arrayidx1 = getelementptr inbounds float, float* %ptr, i64 1
- %arrayidx2 = getelementptr inbounds float, float* %ptr, i64 2
- %arrayidx3 = getelementptr inbounds float, float* %ptr, i64 3
- %arrayidx4 = getelementptr inbounds float, float* %ptr, i64 4
- %arrayidx5 = getelementptr inbounds float, float* %ptr, i64 5
- %arrayidx6 = getelementptr inbounds float, float* %ptr, i64 6
- %arrayidx7 = getelementptr inbounds float, float* %ptr, i64 7
- store float %vecext0, float* %ptr, align 4
- store float %vecext1, float* %arrayidx1, align 4
- store float %vecext2, float* %arrayidx2, align 4
- store float %vecext3, float* %arrayidx3, align 4
- store float %vecext4, float* %arrayidx4, align 4
- store float %vecext5, float* %arrayidx5, align 4
- store float %vecext6, float* %arrayidx6, align 4
- store float %vecext7, float* %arrayidx7, align 4
- ret void
-
-; CHECK-LABEL: merge_vec_element_store
-; CHECK: vmovups
-; CHECK-NEXT: vzeroupper
-; CHECK-NEXT: retq
-}
-
-; PR21711 - Merge vector stores into wider vector stores.
-; These should be merged into 32-byte stores.
-define void @merge_vec_extract_stores(<8 x float> %v1, <8 x float> %v2, <4 x float>* %ptr) {
- %idx0 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 3
- %idx1 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 4
- %idx2 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 5
- %idx3 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 6
- %shuffle0 = shufflevector <8 x float> %v1, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
- %shuffle1 = shufflevector <8 x float> %v1, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
- %shuffle2 = shufflevector <8 x float> %v2, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
- %shuffle3 = shufflevector <8 x float> %v2, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
- store <4 x float> %shuffle0, <4 x float>* %idx0, align 16
- store <4 x float> %shuffle1, <4 x float>* %idx1, align 16
- store <4 x float> %shuffle2, <4 x float>* %idx2, align 16
- store <4 x float> %shuffle3, <4 x float>* %idx3, align 16
- ret void
-
-; CHECK-LABEL: merge_vec_extract_stores
-; CHECK: vmovups %ymm0, 48(%rdi)
-; CHECK-NEXT: vmovups %ymm1, 80(%rdi)
-; CHECK-NEXT: vzeroupper
-; CHECK-NEXT: retq
-}
-
-; Merging vector stores when sourced from vector loads is not currently handled.
-define void @merge_vec_stores_from_loads(<4 x float>* %v, <4 x float>* %ptr) {
- %load_idx0 = getelementptr inbounds <4 x float>, <4 x float>* %v, i64 0
- %load_idx1 = getelementptr inbounds <4 x float>, <4 x float>* %v, i64 1
- %v0 = load <4 x float>, <4 x float>* %load_idx0
- %v1 = load <4 x float>, <4 x float>* %load_idx1
- %store_idx0 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 0
- %store_idx1 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 1
- store <4 x float> %v0, <4 x float>* %store_idx0, align 16
- store <4 x float> %v1, <4 x float>* %store_idx1, align 16
- ret void
-
-; CHECK-LABEL: merge_vec_stores_from_loads
-; CHECK: vmovaps
-; CHECK-NEXT: vmovaps
-; CHECK-NEXT: vmovaps
-; CHECK-NEXT: vmovaps
-; CHECK-NEXT: retq
-}
-
-; Merging vector stores when sourced from a constant vector is not currently handled.
-define void @merge_vec_stores_of_constants(<4 x i32>* %ptr) {
- %idx0 = getelementptr inbounds <4 x i32>, <4 x i32>* %ptr, i64 3
- %idx1 = getelementptr inbounds <4 x i32>, <4 x i32>* %ptr, i64 4
- store <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32>* %idx0, align 16
- store <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32>* %idx1, align 16
- ret void
-
-; CHECK-LABEL: merge_vec_stores_of_constants
-; CHECK: vxorps
-; CHECK-NEXT: vmovaps
-; CHECK-NEXT: vmovaps
-; CHECK-NEXT: retq
-}
-
-; This is a minimized test based on real code that was failing.
-; We could merge stores (and loads) like this...
-
-define void @merge_vec_element_and_scalar_load([6 x i64]* %array) {
- %idx0 = getelementptr inbounds [6 x i64], [6 x i64]* %array, i64 0, i64 0
- %idx1 = getelementptr inbounds [6 x i64], [6 x i64]* %array, i64 0, i64 1
- %idx4 = getelementptr inbounds [6 x i64], [6 x i64]* %array, i64 0, i64 4
- %idx5 = getelementptr inbounds [6 x i64], [6 x i64]* %array, i64 0, i64 5
-
- %a0 = load i64, i64* %idx0, align 8
- store i64 %a0, i64* %idx4, align 8
-
- %b = bitcast i64* %idx1 to <2 x i64>*
- %v = load <2 x i64>, <2 x i64>* %b, align 8
- %a1 = extractelement <2 x i64> %v, i32 0
- store i64 %a1, i64* %idx5, align 8
- ret void
-
-; CHECK-LABEL: merge_vec_element_and_scalar_load
-; CHECK: movq (%rdi), %rax
-; CHECK-NEXT: movq 8(%rdi), %rcx
-; CHECK-NEXT: movq %rax, 32(%rdi)
-; CHECK-NEXT: movq %rcx, 40(%rdi)
-; CHECK-NEXT: retq
-}
-
-; Don't let a non-consecutive store thwart merging of the last two.
-define void @almost_consecutive_stores(i8* %p) {
- store i8 0, i8* %p
- %p1 = getelementptr i8, i8* %p, i64 42
- store i8 1, i8* %p1
- %p2 = getelementptr i8, i8* %p, i64 2
- store i8 2, i8* %p2
- %p3 = getelementptr i8, i8* %p, i64 3
- store i8 3, i8* %p3
- ret void
-; CHECK-LABEL: almost_consecutive_stores
-; CHECK-DAG: movb $0, (%rdi)
-; CHECK-DAG: movb $1, 42(%rdi)
-; CHECK-DAG: movw $770, 2(%rdi)
-; CHECK: retq
-}
-
-; We should be able to merge these.
-define void @merge_bitcast(<4 x i32> %v, float* %ptr) {
- %fv = bitcast <4 x i32> %v to <4 x float>
-
- %vecext1 = extractelement <4 x i32> %v, i32 1
- %vecext2 = extractelement <4 x i32> %v, i32 2
- %vecext3 = extractelement <4 x i32> %v, i32 3
- %f0 = extractelement <4 x float> %fv, i32 0
- %f1 = bitcast i32 %vecext1 to float
- %f2 = bitcast i32 %vecext2 to float
- %f3 = bitcast i32 %vecext3 to float
- %idx0 = getelementptr inbounds float, float* %ptr, i64 0
- %idx1 = getelementptr inbounds float, float* %ptr, i64 1
- %idx2 = getelementptr inbounds float, float* %ptr, i64 2
- %idx3 = getelementptr inbounds float, float* %ptr, i64 3
- store float %f0, float* %idx0, align 4
- store float %f1, float* %idx1, align 4
- store float %f2, float* %idx2, align 4
- store float %f3, float* %idx3, align 4
- ret void
-
-; CHECK-LABEL: merge_bitcast
-; CHECK: vmovd %xmm0, (%rdi)
-; CHECK-NEXT: vpextrd $1, %xmm0, 4(%rdi)
-; CHECK-NEXT: vpextrd $2, %xmm0, 8(%rdi)
-; CHECK-NEXT: vpextrd $3, %xmm0, 12(%rdi)
-; CHECK-NEXT: retq
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-10 15:26:05 +0000