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Diffstat (limited to 'test/CodeGen/X86/force-align-stack-alloca.ll')
| -rw-r--r-- | test/CodeGen/X86/force-align-stack-alloca.ll | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/test/CodeGen/X86/force-align-stack-alloca.ll b/test/CodeGen/X86/force-align-stack-alloca.ll deleted file mode 100644 index 8d42680e199b..000000000000 --- a/test/CodeGen/X86/force-align-stack-alloca.ll +++ /dev/null @@ -1,76 +0,0 @@ -; This test is attempting to detect when we request forced re-alignment of the -; stack to an alignment greater than would be available due to the ABI. We -; arbitrarily force alignment up to 32-bytes for i386 hoping that this will -; exceed any ABI provisions. -; -; RUN: llc < %s -mcpu=generic -stackrealign -stack-alignment=32 | FileCheck %s - -target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128" -target triple = "i386-unknown-linux-gnu" - -define i32 @f(i8* %p) nounwind { -entry: - %0 = load i8, i8* %p - %conv = sext i8 %0 to i32 - ret i32 %conv -} - -define i64 @g(i32 %i) nounwind { -; CHECK-LABEL: g: -; CHECK: pushl %ebp -; CHECK-NEXT: movl %esp, %ebp -; CHECK-NEXT: pushl -; CHECK-NEXT: pushl -; CHECK-NEXT: andl $-32, %esp -; CHECK-NEXT: subl $32, %esp -; -; Now setup the base pointer (%esi). -; CHECK-NEXT: movl %esp, %esi -; CHECK-NOT: {{[^ ,]*}}, %esp -; -; The next adjustment of the stack is due to the alloca. -; CHECK: movl %{{...}}, %esp -; CHECK-NOT: {{[^ ,]*}}, %esp -; -; Next we set up the memset call. -; CHECK: subl $20, %esp -; CHECK-NOT: {{[^ ,]*}}, %esp -; CHECK: pushl -; CHECK: pushl -; CHECK: pushl -; CHECK: calll memset -; -; Deallocating 32 bytes of outgoing call frame for memset and -; allocating 28 bytes for calling f yields a 4-byte adjustment: -; CHECK-NEXT: addl $4, %esp -; CHECK-NOT: {{[^ ,]*}}, %esp -; -; And move on to call 'f', and then restore the stack. -; CHECK: pushl -; CHECK-NOT: {{[^ ,]*}}, %esp -; CHECK: calll f -; CHECK-NEXT: addl $32, %esp -; CHECK-NOT: {{[^ ,]*}}, %esp -; -; Restore %esp from %ebp (frame pointer) and subtract the size of -; zone with callee-saved registers to pop them. -; This is the state prior to stack realignment and the allocation of VLAs. -; CHECK-NOT: popl -; CHECK: leal -8(%ebp), %esp -; CHECK-NEXT: popl -; CHECK-NEXT: popl -; CHECK-NEXT: popl %ebp -; CHECK-NEXT: ret - -entry: - br label %if.then - -if.then: - %0 = alloca i8, i32 %i - call void @llvm.memset.p0i8.i32(i8* %0, i8 0, i32 %i, i32 1, i1 false) - %call = call i32 @f(i8* %0) - %conv = sext i32 %call to i64 - ret i64 %conv -} - -declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i32, i1) nounwind |
