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214 lines
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LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
;
; Check constrained detection of cases where negative zero is impossible:
;
define float @nonneg_u_defaultenv(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_defaultenv(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0:[0-9]+]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_s_defaultenv(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_defaultenv(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_u_maytrap(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_maytrap(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearest", metadata !"fpexcept.maytrap") #0
%sub = call nnan float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap") #0
ret float %sub
}
define float @nonneg_s_maytrap(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_maytrap(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearest", metadata !"fpexcept.maytrap") #0
%sub = call nnan float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap") #0
ret float %sub
}
; NOTE: The fsub instruction is expected to remain, but the result isn't used.
define float @nonneg_u_ebstrict(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_ebstrict(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]]
; CHECK-NEXT: [[SUB:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float [[SQRA]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.strict") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearest", metadata !"fpexcept.strict") #0
%sub = call nnan float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0
ret float %sub
}
; NOTE: The fsub instruction is expected to remain, but the result isn't used.
define float @nonneg_s_ebstrict(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_ebstrict(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]]
; CHECK-NEXT: [[SUB:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float [[SQRA]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.strict") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearest", metadata !"fpexcept.strict") #0
%sub = call nnan float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0
ret float %sub
}
; Test all the rounding modes. Rounding mode and exception handling
; shouldn't matter.
define float @nonneg_u_downward(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_downward(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.downward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.downward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.downward", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.downward", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.downward", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_s_downward(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_downward(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.downward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.downward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.downward", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.downward", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.downward", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_u_upward(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_upward(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.upward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.upward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.upward", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.upward", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.upward", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_s_upward(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_upward(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.upward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.upward", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.upward", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.upward", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.upward", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_u_towardzero(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_towardzero(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.towardzero", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.towardzero", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.towardzero", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.towardzero", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.towardzero", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_s_towardzero(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_towardzero(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.towardzero", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.towardzero", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.towardzero", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.towardzero", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.towardzero", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_u_tonearestaway(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_tonearestaway(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_s_tonearestaway(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_tonearestaway(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.tonearestaway", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_u_dynamic(i32 %a) #0 {
; CHECK-LABEL: @nonneg_u_dynamic(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 [[A:%.*]], metadata !"round.dynamic", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.dynamic", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.uitofp.f32.i32(i32 %a, metadata !"round.dynamic", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.dynamic", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.dynamic", metadata !"fpexcept.ignore") #0
ret float %sub
}
define float @nonneg_s_dynamic(i32 %a) #0 {
; CHECK-LABEL: @nonneg_s_dynamic(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.dynamic", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: [[SQRA:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[FPA]], metadata !"round.dynamic", metadata !"fpexcept.ignore") #[[ATTR0]]
; CHECK-NEXT: ret float [[SQRA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.dynamic", metadata !"fpexcept.ignore") #0
%sqra = call float @llvm.experimental.constrained.sqrt.f32(float %fpa, metadata !"round.dynamic", metadata !"fpexcept.ignore") #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %sqra, float -0.0, metadata !"round.dynamic", metadata !"fpexcept.ignore") #0
ret float %sub
}
declare float @llvm.experimental.constrained.sqrt.f32(float, metadata, metadata) #0
declare float @llvm.experimental.constrained.fsub.f32(float, float, metadata, metadata) #0
declare float @llvm.experimental.constrained.sitofp.f32.i32(i32, metadata, metadata) #0
declare float @llvm.experimental.constrained.uitofp.f32.i32(i32, metadata, metadata) #0
attributes #0 = { strictfp }
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