130 lines
4.8 KiB
LLVM
130 lines
4.8 KiB
LLVM
; RUN: opt -S -simplifycfg < %s | FileCheck %s --check-prefix=EXPENSIVE --check-prefix=ALL
|
|
; RUN: opt -S -simplifycfg -speculate-one-expensive-inst=false < %s | FileCheck %s --check-prefix=CHEAP --check-prefix=ALL
|
|
|
|
declare float @llvm.sqrt.f32(float) nounwind readonly
|
|
declare float @llvm.fma.f32(float, float, float) nounwind readonly
|
|
declare float @llvm.fmuladd.f32(float, float, float) nounwind readonly
|
|
declare float @llvm.fabs.f32(float) nounwind readonly
|
|
declare float @llvm.minnum.f32(float, float) nounwind readonly
|
|
declare float @llvm.maxnum.f32(float, float) nounwind readonly
|
|
|
|
; ALL-LABEL: @fdiv_test(
|
|
; EXPENSIVE: select i1 %cmp, double %div, double 0.0
|
|
; CHEAP-NOT: select
|
|
|
|
define double @fdiv_test(double %a, double %b) {
|
|
entry:
|
|
%cmp = fcmp ogt double %a, 0.0
|
|
br i1 %cmp, label %cond.true, label %cond.end
|
|
|
|
cond.true:
|
|
%div = fdiv double %b, %a
|
|
br label %cond.end
|
|
|
|
cond.end:
|
|
%cond = phi double [ %div, %cond.true ], [ 0.0, %entry ]
|
|
ret double %cond
|
|
}
|
|
|
|
; ALL-LABEL: @sqrt_test(
|
|
; ALL: select
|
|
define void @sqrt_test(float addrspace(1)* noalias nocapture %out, float %a) nounwind {
|
|
entry:
|
|
%cmp.i = fcmp olt float %a, 0.000000e+00
|
|
br i1 %cmp.i, label %test_sqrt.exit, label %cond.else.i
|
|
|
|
cond.else.i: ; preds = %entry
|
|
%0 = tail call float @llvm.sqrt.f32(float %a) nounwind readnone
|
|
br label %test_sqrt.exit
|
|
|
|
test_sqrt.exit: ; preds = %cond.else.i, %entry
|
|
%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
|
|
store float %cond.i, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; ALL-LABEL: @fabs_test(
|
|
; ALL: select
|
|
define void @fabs_test(float addrspace(1)* noalias nocapture %out, float %a) nounwind {
|
|
entry:
|
|
%cmp.i = fcmp olt float %a, 0.000000e+00
|
|
br i1 %cmp.i, label %test_fabs.exit, label %cond.else.i
|
|
|
|
cond.else.i: ; preds = %entry
|
|
%0 = tail call float @llvm.fabs.f32(float %a) nounwind readnone
|
|
br label %test_fabs.exit
|
|
|
|
test_fabs.exit: ; preds = %cond.else.i, %entry
|
|
%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
|
|
store float %cond.i, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; ALL-LABEL: @fma_test(
|
|
; ALL: select
|
|
define void @fma_test(float addrspace(1)* noalias nocapture %out, float %a, float %b, float %c) nounwind {
|
|
entry:
|
|
%cmp.i = fcmp olt float %a, 0.000000e+00
|
|
br i1 %cmp.i, label %test_fma.exit, label %cond.else.i
|
|
|
|
cond.else.i: ; preds = %entry
|
|
%0 = tail call float @llvm.fma.f32(float %a, float %b, float %c) nounwind readnone
|
|
br label %test_fma.exit
|
|
|
|
test_fma.exit: ; preds = %cond.else.i, %entry
|
|
%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
|
|
store float %cond.i, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; ALL-LABEL: @fmuladd_test(
|
|
; ALL: select
|
|
define void @fmuladd_test(float addrspace(1)* noalias nocapture %out, float %a, float %b, float %c) nounwind {
|
|
entry:
|
|
%cmp.i = fcmp olt float %a, 0.000000e+00
|
|
br i1 %cmp.i, label %test_fmuladd.exit, label %cond.else.i
|
|
|
|
cond.else.i: ; preds = %entry
|
|
%0 = tail call float @llvm.fmuladd.f32(float %a, float %b, float %c) nounwind readnone
|
|
br label %test_fmuladd.exit
|
|
|
|
test_fmuladd.exit: ; preds = %cond.else.i, %entry
|
|
%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
|
|
store float %cond.i, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; ALL-LABEL: @minnum_test(
|
|
; ALL: select
|
|
define void @minnum_test(float addrspace(1)* noalias nocapture %out, float %a, float %b) nounwind {
|
|
entry:
|
|
%cmp.i = fcmp olt float %a, 0.000000e+00
|
|
br i1 %cmp.i, label %test_minnum.exit, label %cond.else.i
|
|
|
|
cond.else.i: ; preds = %entry
|
|
%0 = tail call float @llvm.minnum.f32(float %a, float %b) nounwind readnone
|
|
br label %test_minnum.exit
|
|
|
|
test_minnum.exit: ; preds = %cond.else.i, %entry
|
|
%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
|
|
store float %cond.i, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; ALL-LABEL: @maxnum_test(
|
|
; ALL: select
|
|
define void @maxnum_test(float addrspace(1)* noalias nocapture %out, float %a, float %b) nounwind {
|
|
entry:
|
|
%cmp.i = fcmp olt float %a, 0.000000e+00
|
|
br i1 %cmp.i, label %test_maxnum.exit, label %cond.else.i
|
|
|
|
cond.else.i: ; preds = %entry
|
|
%0 = tail call float @llvm.maxnum.f32(float %a, float %b) nounwind readnone
|
|
br label %test_maxnum.exit
|
|
|
|
test_maxnum.exit: ; preds = %cond.else.i, %entry
|
|
%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
|
|
store float %cond.i, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|