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Diffstat (limited to 'test/CodeGen/NVPTX/rsqrt.ll')
| -rw-r--r-- | test/CodeGen/NVPTX/rsqrt.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/NVPTX/rsqrt.ll b/test/CodeGen/NVPTX/rsqrt.ll new file mode 100644 index 0000000000000..3a52a493abdd1 --- /dev/null +++ b/test/CodeGen/NVPTX/rsqrt.ll @@ -0,0 +1,13 @@ +; RUN: llc < %s -march=nvptx -mcpu=sm_20 -nvptx-prec-divf32=1 -nvptx-prec-sqrtf32=0 | FileCheck %s + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64" + +declare float @llvm.nvvm.sqrt.f(float) + +define float @foo(float %a) { +; CHECK: rsqrt.approx.f32 + %val = tail call float @llvm.nvvm.sqrt.f(float %a) + %ret = fdiv float 1.0, %val + ret float %ret +} + |