diff options
Diffstat (limited to 'llvm/test/CodeGen/ARM/reg-alloc-fixed-r6-vla.ll')
-rw-r--r-- | llvm/test/CodeGen/ARM/reg-alloc-fixed-r6-vla.ll | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/llvm/test/CodeGen/ARM/reg-alloc-fixed-r6-vla.ll b/llvm/test/CodeGen/ARM/reg-alloc-fixed-r6-vla.ll deleted file mode 100644 index 0b6fd7443af..00000000000 --- a/llvm/test/CodeGen/ARM/reg-alloc-fixed-r6-vla.ll +++ /dev/null @@ -1,44 +0,0 @@ -; Using VLAs(Variable Length Arrays) in a function will use R6 to keep track -; of the stack frame, and also spill/restore R6 to the stack. -; This tests that using -ffixed-r6 (-mattr=+reserve-r6) will stop R6 -; being used and also stop it being spilled/restored to the stack. -; RUN: llc < %s -mcpu=cortex-m0 -mtriple=thumbv7-arm-none-eabi | FileCheck %s --check-prefix=CHECK-STATIC --check-prefix=CHECK-R6 -; RUN: llc < %s -mcpu=cortex-m0 -mtriple=thumbv7-arm-none-eabi -mattr=+reserve-r6 | FileCheck %s --check-prefix=CHECK-STATIC --check-prefix=CHECK-NO-R6 - -define void @f() #0 { -entry: - %i = alloca i32, align 4 - store i32 0, i32* %i, align 4 - - %saved_stack = alloca i8*, align 4 - %0 = call i8* @llvm.stacksave() - store i8* %0, i8** %saved_stack, align 4 - - %__vla_expr0 = alloca i32, align 4 - %1 = load i32, i32* %i, align 4 - %vla = alloca double, i32 %1, align 8 - store i32 %1, i32* %__vla_expr0, align 4 - - %2 = load i8*, i8** %saved_stack, align 4 - call void @llvm.stackrestore(i8* %2) - - ret void -} - -declare i8* @llvm.stacksave() #1 -declare void @llvm.stackrestore(i8* %ptr) #1 - -attributes #0 = { noinline nounwind "stackrealign" } -attributes #1 = { nounwind } - -; CHECK-STATIC: push {r4, -; CHECK-R6: r6 -; CHECK-NO-R6-NOT: r6 -; CHECK-STATIC: lr} -; CHECK-R6: r6 -; CHECK-NO-R6-NOT: r6 -; CHECK-STATIC: pop {r4, -; CHECK-R6: r6 -; CHECK-NO-R6-NOT: r6 -; CHECK-STATIC: pc} - |