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; Test that the cos library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s -check-prefix=NO-FLOAT-SHRINK
; RUN: opt < %s -instcombine -enable-double-float-shrink -S | FileCheck %s -check-prefix=DO-FLOAT-SHRINK
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
declare double @cos(double)
; Check cos(-x) -> cos(x);
define double @test_simplify1(double %d) {
; NO-FLOAT-SHRINK-LABEL: @test_simplify1(
%neg = fsub double -0.000000e+00, %d
%cos = call double @cos(double %neg)
; NO-FLOAT-SHRINK: call double @cos(double %d)
ret double %cos
}
define float @test_simplify2(float %f) {
; DO-FLOAT-SHRINK-LABEL: @test_simplify2(
%conv1 = fpext float %f to double
%neg = fsub double -0.000000e+00, %conv1
%cos = call double @cos(double %neg)
%conv2 = fptrunc double %cos to float
; DO-FLOAT-SHRINK: call float @cosf(float %f)
ret float %conv2
}
define float @test_simplify3(float %f) {
; NO-FLOAT-SHRINK-LABEL: @test_simplify3(
%conv1 = fpext float %f to double
%neg = fsub double -0.000000e+00, %conv1
%cos = call double @cos(double %neg)
; NO-FLOAT-SHRINK: call double @cos(double %conv1)
%conv2 = fptrunc double %cos to float
ret float %conv2
}
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