diff options
Diffstat (limited to 'test/CodeGen/AArch64/selectcc-to-shiftand.ll')
| -rw-r--r-- | test/CodeGen/AArch64/selectcc-to-shiftand.ll | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/test/CodeGen/AArch64/selectcc-to-shiftand.ll b/test/CodeGen/AArch64/selectcc-to-shiftand.ll deleted file mode 100644 index 0d89cdedfa8a..000000000000 --- a/test/CodeGen/AArch64/selectcc-to-shiftand.ll +++ /dev/null @@ -1,128 +0,0 @@ -; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s - -; Compare if negative and select of constants where one constant is zero. - -define i32 @neg_sel_constants(i32 %a) { -; CHECK-LABEL: neg_sel_constants: -; CHECK: // BB#0: -; CHECK-NEXT: mov w8, #5 -; CHECK-NEXT: and w0, w8, w0, asr #31 -; CHECK-NEXT: ret -; - %tmp.1 = icmp slt i32 %a, 0 - %retval = select i1 %tmp.1, i32 5, i32 0 - ret i32 %retval -} - -; Compare if negative and select of constants where one constant is zero and the other is a single bit. - -define i32 @neg_sel_special_constant(i32 %a) { -; CHECK-LABEL: neg_sel_special_constant: -; CHECK: // BB#0: -; CHECK-NEXT: lsr w8, w0, #22 -; CHECK-NEXT: and w0, w8, #0x200 -; CHECK-NEXT: ret -; - %tmp.1 = icmp slt i32 %a, 0 - %retval = select i1 %tmp.1, i32 512, i32 0 - ret i32 %retval -} - -; Compare if negative and select variable or zero. - -define i32 @neg_sel_variable_and_zero(i32 %a, i32 %b) { -; CHECK-LABEL: neg_sel_variable_and_zero: -; CHECK: // BB#0: -; CHECK-NEXT: and w0, w1, w0, asr #31 -; CHECK-NEXT: ret -; - %tmp.1 = icmp slt i32 %a, 0 - %retval = select i1 %tmp.1, i32 %b, i32 0 - ret i32 %retval -} - -; Compare if not positive and select the same variable as being compared: smin(a, 0). - -define i32 @not_pos_sel_same_variable(i32 %a) { -; CHECK-LABEL: not_pos_sel_same_variable: -; CHECK: // BB#0: -; CHECK-NEXT: and w0, w0, w0, asr #31 -; CHECK-NEXT: ret -; - %tmp = icmp slt i32 %a, 1 - %min = select i1 %tmp, i32 %a, i32 0 - ret i32 %min -} - -; Flipping the comparison condition can be handled by getting the bitwise not of the sign mask. - -; Compare if positive and select of constants where one constant is zero. - -define i32 @pos_sel_constants(i32 %a) { -; CHECK-LABEL: pos_sel_constants: -; CHECK: // BB#0: -; CHECK-NEXT: mov w8, #5 -; CHECK-NEXT: bic w0, w8, w0, asr #31 -; CHECK-NEXT: ret -; - %tmp.1 = icmp sgt i32 %a, -1 - %retval = select i1 %tmp.1, i32 5, i32 0 - ret i32 %retval -} - -; Compare if positive and select of constants where one constant is zero and the other is a single bit. - -define i32 @pos_sel_special_constant(i32 %a) { -; CHECK-LABEL: pos_sel_special_constant: -; CHECK: // BB#0: -; CHECK-NEXT: orr w8, wzr, #0x200 -; CHECK-NEXT: bic w0, w8, w0, lsr #22 -; CHECK-NEXT: ret -; - %tmp.1 = icmp sgt i32 %a, -1 - %retval = select i1 %tmp.1, i32 512, i32 0 - ret i32 %retval -} - -; Compare if positive and select variable or zero. - -define i32 @pos_sel_variable_and_zero(i32 %a, i32 %b) { -; CHECK-LABEL: pos_sel_variable_and_zero: -; CHECK: // BB#0: -; CHECK-NEXT: bic w0, w1, w0, asr #31 -; CHECK-NEXT: ret -; - %tmp.1 = icmp sgt i32 %a, -1 - %retval = select i1 %tmp.1, i32 %b, i32 0 - ret i32 %retval -} - -; Compare if not negative or zero and select the same variable as being compared: smax(a, 0). - -define i32 @not_neg_sel_same_variable(i32 %a) { -; CHECK-LABEL: not_neg_sel_same_variable: -; CHECK: // BB#0: -; CHECK-NEXT: bic w0, w0, w0, asr #31 -; CHECK-NEXT: ret -; - %tmp = icmp sgt i32 %a, 0 - %min = select i1 %tmp, i32 %a, i32 0 - ret i32 %min -} - -; https://llvm.org/bugs/show_bug.cgi?id=31175 - -; ret = (x-y) > 0 ? x-y : 0 -define i32 @PR31175(i32 %x, i32 %y) { -; CHECK-LABEL: PR31175: -; CHECK: // BB#0: -; CHECK-NEXT: sub w8, w0, w1 -; CHECK-NEXT: bic w0, w8, w8, asr #31 -; CHECK-NEXT: ret -; - %sub = sub nsw i32 %x, %y - %cmp = icmp sgt i32 %sub, 0 - %sel = select i1 %cmp, i32 %sub, i32 0 - ret i32 %sel -} - |
