1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; Test that the exp2 library call simplifier works correctly.
4 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
6 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
8 declare float @exp2(double)
10 ; Check that exp2 functions with the wrong prototype aren't simplified.
12 define float @test_no_simplify1(i32 %x) {
13 ; CHECK-LABEL: @test_no_simplify1(
14 ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[X:%.*]] to double
15 ; CHECK-NEXT: [[RET:%.*]] = call float @exp2(double [[CONV]])
16 ; CHECK-NEXT: ret float [[RET]]
18 %conv = sitofp i32 %x to double
19 %ret = call float @exp2(double %conv)