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Diffstat (limited to 'test/CodeGen/ARM/no-tail-call.ll')
| -rw-r--r-- | test/CodeGen/ARM/no-tail-call.ll | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/no-tail-call.ll b/test/CodeGen/ARM/no-tail-call.ll new file mode 100644 index 0000000..3a8cb21 --- /dev/null +++ b/test/CodeGen/ARM/no-tail-call.ll @@ -0,0 +1,84 @@ +; RUN: llc < %s -O0 -o - | FileCheck %s +target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" +target triple = "armv7s-apple-ios7" + +%foo = type <{ %Sf }> +%Sf = type <{ float }> + +declare float @llvm.ceil.f32(float) + +; Check that we are not emitting a tail call for the last call to ceil. +; This function returns three different results. +; CHECK-LABEL: func1: +; CHECK-NOT: b _ceilf +; CHECK: pop +define { float, float, float } @func1() { +entry: + %0 = alloca %foo, align 4 + %1 = alloca %foo, align 4 + %2 = alloca %foo, align 4 + %.native = getelementptr inbounds %foo* %0, i32 0, i32 0 + %.native.value = getelementptr inbounds %Sf* %.native, i32 0, i32 0 + store float 0.000000e+00, float* %.native.value, align 4 + %.native1 = getelementptr inbounds %foo* %1, i32 0, i32 0 + %.native1.value = getelementptr inbounds %Sf* %.native1, i32 0, i32 0 + store float 1.000000e+00, float* %.native1.value, align 4 + %.native2 = getelementptr inbounds %foo* %2, i32 0, i32 0 + %.native2.value = getelementptr inbounds %Sf* %.native2, i32 0, i32 0 + store float 5.000000e+00, float* %.native2.value, align 4 + br i1 true, label %3, label %4 + +; <label>:3 ; preds = %entry + %.native4 = getelementptr inbounds %foo* %1, i32 0, i32 0 + %.native4.value = getelementptr inbounds %Sf* %.native4, i32 0, i32 0 + store float 2.000000e+00, float* %.native4.value, align 4 + br label %4 + +; <label>:4 ; preds = %3, %entry + %5 = call float @llvm.ceil.f32(float 5.000000e+00) + %.native3 = getelementptr inbounds %foo* %1, i32 0, i32 0 + %.native3.value = getelementptr inbounds %Sf* %.native3, i32 0, i32 0 + %6 = load float* %.native3.value, align 4 + %7 = call float @llvm.ceil.f32(float %6) + %8 = insertvalue { float, float, float } { float 0.000000e+00, float undef, float undef }, float %5, 1 + %9 = insertvalue { float, float, float } %8, float %7, 2 + ret { float, float, float } %9 +} + +; Check that we are not emitting a tail call for the last call to ceil. +; This function returns two different results. +; CHECK-LABEL: func2: +; CHECK-NOT: b _ceilf +; CHECK: pop +define { float, float } @func2() { +entry: + %0 = alloca %foo, align 4 + %1 = alloca %foo, align 4 + %2 = alloca %foo, align 4 + %.native = getelementptr inbounds %foo* %0, i32 0, i32 0 + %.native.value = getelementptr inbounds %Sf* %.native, i32 0, i32 0 + store float 0.000000e+00, float* %.native.value, align 4 + %.native1 = getelementptr inbounds %foo* %1, i32 0, i32 0 + %.native1.value = getelementptr inbounds %Sf* %.native1, i32 0, i32 0 + store float 1.000000e+00, float* %.native1.value, align 4 + %.native2 = getelementptr inbounds %foo* %2, i32 0, i32 0 + %.native2.value = getelementptr inbounds %Sf* %.native2, i32 0, i32 0 + store float 5.000000e+00, float* %.native2.value, align 4 + br i1 true, label %3, label %4 + +; <label>:3 ; preds = %entry + %.native4 = getelementptr inbounds %foo* %1, i32 0, i32 0 + %.native4.value = getelementptr inbounds %Sf* %.native4, i32 0, i32 0 + store float 2.000000e+00, float* %.native4.value, align 4 + br label %4 + +; <label>:4 ; preds = %3, %entry + %5 = call float @llvm.ceil.f32(float 5.000000e+00) + %.native3 = getelementptr inbounds %foo* %1, i32 0, i32 0 + %.native3.value = getelementptr inbounds %Sf* %.native3, i32 0, i32 0 + %6 = load float* %.native3.value, align 4 + %7 = call float @llvm.ceil.f32(float %6) + %8 = insertvalue { float, float } { float 0.000000e+00, float undef }, float %7, 1 + ret { float, float } %8 +} + |