llvm-project/llvm/test/CodeGen/NVPTX/fast-math.ll

44 lines
866 B
LLVM
Raw Normal View History

; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
declare float @llvm.nvvm.sqrt.f(float)
; CHECK: sqrt_div
; CHECK: sqrt.rn.f32
; CHECK: div.rn.f32
define float @sqrt_div(float %a, float %b) {
%t1 = tail call float @llvm.nvvm.sqrt.f(float %a)
%t2 = fdiv float %t1, %b
ret float %t2
}
; CHECK: sqrt_div_fast
; CHECK: sqrt.approx.f32
; CHECK: div.approx.f32
define float @sqrt_div_fast(float %a, float %b) #0 {
%t1 = tail call float @llvm.nvvm.sqrt.f(float %a)
%t2 = fdiv float %t1, %b
ret float %t2
}
; CHECK: fadd
; CHECK: add.f32
define float @fadd(float %a, float %b) {
%t1 = fadd float %a, %b
ret float %t1
}
; CHECK: fadd_ftz
; CHECK: add.ftz.f32
define float @fadd_ftz(float %a, float %b) #1 {
%t1 = fadd float %a, %b
ret float %t1
}
attributes #0 = { "unsafe-fp-math" = "true" }
attributes #1 = { "nvptx-f32ftz" = "true" }