+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -instcombine < %s | FileCheck %s
define float @test1(float %x) nounwind readnone ssp {
-entry:
; CHECK-LABEL: @test1(
-; CHECK-NOT: fpext
-; CHECK-NOT: sqrt(
-; CHECK: sqrtf(
-; CHECK-NOT: fptrunc
- %conv = fpext float %x to double ; <double> [#uses=1]
- %call = tail call double @sqrt(double %conv) readnone nounwind ; <double> [#uses=1]
- %conv1 = fptrunc double %call to float ; <float> [#uses=1]
-; CHECK: ret float
+; CHECK-NEXT: [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #3
+; CHECK-NEXT: ret float [[SQRTF]]
+;
+ %conv = fpext float %x to double
+ %call = tail call double @sqrt(double %conv) readnone nounwind
+ %conv1 = fptrunc double %call to float
ret float %conv1
}
; PR8096
+
define float @test2(float %x) nounwind readnone ssp {
-entry:
; CHECK-LABEL: @test2(
-; CHECK-NOT: fpext
-; CHECK-NOT: sqrt(
-; CHECK: sqrtf(
-; CHECK-NOT: fptrunc
- %conv = fpext float %x to double ; <double> [#uses=1]
- %call = tail call double @sqrt(double %conv) nounwind ; <double> [#uses=1]
- %conv1 = fptrunc double %call to float ; <float> [#uses=1]
-; CHECK: ret float
+; CHECK-NEXT: [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #3
+; CHECK-NEXT: ret float [[SQRTF]]
+;
+ %conv = fpext float %x to double
+ %call = tail call double @sqrt(double %conv) nounwind
+ %conv1 = fptrunc double %call to float
ret float %conv1
}
; rdar://9763193
; Can't fold (fptrunc (sqrt (fpext x))) -> (sqrtf x) since there is another
; use of sqrt result.
+
define float @test3(float* %v) nounwind uwtable ssp {
-entry:
; CHECK-LABEL: @test3(
-; CHECK: sqrt(
-; CHECK-NOT: sqrtf(
-; CHECK: fptrunc
+; CHECK-NEXT: [[CALL34:%.*]] = call double @sqrt(double 0x7FF8000000000000) #3
+; CHECK-NEXT: [[CALL36:%.*]] = call i32 @foo(double [[CALL34]]) #4
+; CHECK-NEXT: [[CONV38:%.*]] = fptrunc double [[CALL34]] to float
+; CHECK-NEXT: ret float [[CONV38]]
+;
%arrayidx13 = getelementptr inbounds float, float* %v, i64 2
%tmp14 = load float, float* %arrayidx13
%mul18 = fmul float %tmp14, %tmp14
}
declare i32 @foo(double)
-
declare double @sqrt(double) readnone