1; Test that the exp2 library call simplifier works correctly. 2; 3; RUN: opt < %s -instcombine -S | FileCheck %s 4; RUN: opt < %s -instcombine -S -mtriple=i386-pc-win32 | FileCheck %s -check-prefix=CHECK-WIN 5 6target 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" 7 8declare double @exp2(double) 9declare float @exp2f(float) 10 11; Check exp2(sitofp(x)) -> ldexp(1.0, sext(x)). 12 13define double @test_simplify1(i32 %x) { 14; CHECK-LABEL: @test_simplify1( 15 %conv = sitofp i32 %x to double 16 %ret = call double @exp2(double %conv) 17; CHECK: call double @ldexp 18 ret double %ret 19} 20 21define double @test_simplify2(i16 signext %x) { 22; CHECK-LABEL: @test_simplify2( 23 %conv = sitofp i16 %x to double 24 %ret = call double @exp2(double %conv) 25; CHECK: call double @ldexp 26 ret double %ret 27} 28 29define double @test_simplify3(i8 signext %x) { 30; CHECK-LABEL: @test_simplify3( 31 %conv = sitofp i8 %x to double 32 %ret = call double @exp2(double %conv) 33; CHECK: call double @ldexp 34 ret double %ret 35} 36 37define float @test_simplify4(i32 %x) { 38; CHECK-LABEL: @test_simplify4( 39 %conv = sitofp i32 %x to float 40 %ret = call float @exp2f(float %conv) 41; CHECK: call float @ldexpf 42 ret float %ret 43} 44 45; Check exp2(uitofp(x)) -> ldexp(1.0, zext(x)). 46 47define double @test_no_simplify1(i32 %x) { 48; CHECK-LABEL: @test_no_simplify1( 49 %conv = uitofp i32 %x to double 50 %ret = call double @exp2(double %conv) 51; CHECK: call double @exp2 52 ret double %ret 53} 54 55define double @test_simplify6(i16 zeroext %x) { 56; CHECK-LABEL: @test_simplify6( 57 %conv = uitofp i16 %x to double 58 %ret = call double @exp2(double %conv) 59; CHECK: call double @ldexp 60 ret double %ret 61} 62 63define double @test_simplify7(i8 zeroext %x) { 64; CHECK-LABEL: @test_simplify7( 65 %conv = uitofp i8 %x to double 66 %ret = call double @exp2(double %conv) 67; CHECK: call double @ldexp 68 ret double %ret 69} 70 71define float @test_simplify8(i8 zeroext %x) { 72; CHECK-LABEL: @test_simplify8( 73 %conv = uitofp i8 %x to float 74 %ret = call float @exp2f(float %conv) 75; CHECK: call float @ldexpf 76 ret float %ret 77} 78 79declare double @llvm.exp2.f64(double) 80declare float @llvm.exp2.f32(float) 81 82define double @test_simplify9(i8 zeroext %x) { 83; CHECK-LABEL: @test_simplify9( 84; CHECK-WIN-LABEL: @test_simplify9( 85 %conv = uitofp i8 %x to double 86 %ret = call double @llvm.exp2.f64(double %conv) 87; CHECK: call double @ldexp 88; CHECK-WIN: call double @ldexp 89 ret double %ret 90} 91 92define float @test_simplify10(i8 zeroext %x) { 93; CHECK-LABEL: @test_simplify10( 94; CHECK-WIN-LABEL: @test_simplify10( 95 %conv = uitofp i8 %x to float 96 %ret = call float @llvm.exp2.f32(float %conv) 97; CHECK: call float @ldexpf 98; CHECK-WIN-NOT: call float @ldexpf 99 ret float %ret 100} 101