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