| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; Test that the exp2 library call simplifier works correctly. |
| ; |
| ; RUN: opt < %s -instcombine -S -mtriple=unknown | FileCheck %s -check-prefixes=LDEXP32 |
| ; RUN: opt < %s -instcombine -S -mtriple=msp430 | FileCheck %s -check-prefixes=LDEXP16 |
| ; RUN: opt < %s -instcombine -S -mtriple=i386-pc-win32 | FileCheck %s -check-prefixes=NOLDEXPF |
| ; RUN: opt < %s -instcombine -S -mtriple=amdgcn-unknown-unknown | FileCheck %s -check-prefixes=NOLDEXP |
| |
| 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" |
| |
| declare double @exp2(double) |
| declare float @exp2f(float) |
| |
| ; Check exp2(sitofp(x)) -> ldexp(1.0, sext(x)). |
| |
| define double @test_simplify1(i32 %x) { |
| ; LDEXP32-LABEL: @test_simplify1( |
| ; LDEXP32-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[X:%.*]]) |
| ; LDEXP32-NEXT: ret double [[LDEXP]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify1( |
| ; LDEXP16-NEXT: [[CONV:%.*]] = sitofp i32 [[X:%.*]] to double |
| ; LDEXP16-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; LDEXP16-NEXT: ret double [[RET]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify1( |
| ; NOLDEXPF-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[X:%.*]]) |
| ; NOLDEXPF-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify1( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = sitofp i32 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = sitofp i32 %x to double |
| %ret = call double @exp2(double %conv) |
| ret double %ret |
| } |
| |
| define double @test_simplify2(i16 signext %x) { |
| ; LDEXP32-LABEL: @test_simplify2( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = sext i16 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret double [[LDEXP]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify2( |
| ; LDEXP16-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[X:%.*]]) |
| ; LDEXP16-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify2( |
| ; NOLDEXPF-NEXT: [[TMP1:%.*]] = sext i16 [[X:%.*]] to i32 |
| ; NOLDEXPF-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; NOLDEXPF-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify2( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = sitofp i16 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = sitofp i16 %x to double |
| %ret = call double @exp2(double %conv) |
| ret double %ret |
| } |
| |
| define double @test_simplify3(i8 signext %x) { |
| ; LDEXP32-LABEL: @test_simplify3( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = sext i8 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret double [[LDEXP]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify3( |
| ; LDEXP16-NEXT: [[TMP1:%.*]] = sext i8 [[X:%.*]] to i16 |
| ; LDEXP16-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[TMP1]]) |
| ; LDEXP16-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify3( |
| ; NOLDEXPF-NEXT: [[TMP1:%.*]] = sext i8 [[X:%.*]] to i32 |
| ; NOLDEXPF-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; NOLDEXPF-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify3( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = sitofp i8 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = sitofp i8 %x to double |
| %ret = call double @exp2(double %conv) |
| ret double %ret |
| } |
| |
| define float @test_simplify4(i32 %x) { |
| ; LDEXP32-LABEL: @test_simplify4( |
| ; LDEXP32-NEXT: [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[X:%.*]]) |
| ; LDEXP32-NEXT: ret float [[LDEXPF]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify4( |
| ; LDEXP16-NEXT: [[CONV:%.*]] = sitofp i32 [[X:%.*]] to float |
| ; LDEXP16-NEXT: [[RET:%.*]] = call float @exp2f(float [[CONV]]) |
| ; LDEXP16-NEXT: ret float [[RET]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify4( |
| ; NOLDEXPF-NEXT: [[CONV:%.*]] = sitofp i32 [[X:%.*]] to float |
| ; NOLDEXPF-NEXT: [[RET:%.*]] = call float @exp2f(float [[CONV]]) |
| ; NOLDEXPF-NEXT: ret float [[RET]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify4( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = sitofp i32 [[X:%.*]] to float |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call float @exp2f(float [[CONV]]) |
| ; NOLDEXP-NEXT: ret float [[RET]] |
| ; |
| %conv = sitofp i32 %x to float |
| %ret = call float @exp2f(float %conv) |
| ret float %ret |
| } |
| |
| ; Check exp2(uitofp(x)) -> ldexp(1.0, zext(x)). |
| |
| define double @test_no_simplify1(i32 %x) { |
| ; LDEXP32-LABEL: @test_no_simplify1( |
| ; LDEXP32-NEXT: [[CONV:%.*]] = uitofp i32 [[X:%.*]] to double |
| ; LDEXP32-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; LDEXP32-NEXT: ret double [[RET]] |
| ; |
| ; LDEXP16-LABEL: @test_no_simplify1( |
| ; LDEXP16-NEXT: [[CONV:%.*]] = uitofp i32 [[X:%.*]] to double |
| ; LDEXP16-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; LDEXP16-NEXT: ret double [[RET]] |
| ; |
| ; NOLDEXPF-LABEL: @test_no_simplify1( |
| ; NOLDEXPF-NEXT: [[CONV:%.*]] = uitofp i32 [[X:%.*]] to double |
| ; NOLDEXPF-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXPF-NEXT: ret double [[RET]] |
| ; |
| ; NOLDEXP-LABEL: @test_no_simplify1( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = uitofp i32 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = uitofp i32 %x to double |
| %ret = call double @exp2(double %conv) |
| ret double %ret |
| } |
| |
| define double @test_simplify6(i16 zeroext %x) { |
| ; LDEXP32-LABEL: @test_simplify6( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = zext i16 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret double [[LDEXP]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify6( |
| ; LDEXP16-NEXT: [[CONV:%.*]] = uitofp i16 [[X:%.*]] to double |
| ; LDEXP16-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; LDEXP16-NEXT: ret double [[RET]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify6( |
| ; NOLDEXPF-NEXT: [[TMP1:%.*]] = zext i16 [[X:%.*]] to i32 |
| ; NOLDEXPF-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; NOLDEXPF-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify6( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = uitofp i16 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = uitofp i16 %x to double |
| %ret = call double @exp2(double %conv) |
| ret double %ret |
| } |
| |
| define double @test_simplify7(i8 zeroext %x) { |
| ; LDEXP32-LABEL: @test_simplify7( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret double [[LDEXP]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify7( |
| ; LDEXP16-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16 |
| ; LDEXP16-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[TMP1]]) |
| ; LDEXP16-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify7( |
| ; NOLDEXPF-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32 |
| ; NOLDEXPF-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; NOLDEXPF-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify7( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = uitofp i8 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @exp2(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = uitofp i8 %x to double |
| %ret = call double @exp2(double %conv) |
| ret double %ret |
| } |
| |
| define float @test_simplify8(i8 zeroext %x) { |
| ; LDEXP32-LABEL: @test_simplify8( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret float [[LDEXPF]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify8( |
| ; LDEXP16-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16 |
| ; LDEXP16-NEXT: [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 [[TMP1]]) |
| ; LDEXP16-NEXT: ret float [[LDEXPF]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify8( |
| ; NOLDEXPF-NEXT: [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float |
| ; NOLDEXPF-NEXT: [[RET:%.*]] = call float @exp2f(float [[CONV]]) |
| ; NOLDEXPF-NEXT: ret float [[RET]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify8( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call float @exp2f(float [[CONV]]) |
| ; NOLDEXP-NEXT: ret float [[RET]] |
| ; |
| %conv = uitofp i8 %x to float |
| %ret = call float @exp2f(float %conv) |
| ret float %ret |
| } |
| |
| declare double @llvm.exp2.f64(double) |
| declare float @llvm.exp2.f32(float) |
| |
| define double @test_simplify9(i8 zeroext %x) { |
| ; LDEXP32-LABEL: @test_simplify9( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret double [[LDEXP]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify9( |
| ; LDEXP16-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16 |
| ; LDEXP16-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[TMP1]]) |
| ; LDEXP16-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify9( |
| ; NOLDEXPF-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32 |
| ; NOLDEXPF-NEXT: [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]]) |
| ; NOLDEXPF-NEXT: ret double [[LDEXP]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify9( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = uitofp i8 [[X:%.*]] to double |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call double @llvm.exp2.f64(double [[CONV]]) |
| ; NOLDEXP-NEXT: ret double [[RET]] |
| ; |
| %conv = uitofp i8 %x to double |
| %ret = call double @llvm.exp2.f64(double %conv) |
| ret double %ret |
| } |
| |
| define float @test_simplify10(i8 zeroext %x) { |
| ; LDEXP32-LABEL: @test_simplify10( |
| ; LDEXP32-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32 |
| ; LDEXP32-NEXT: [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[TMP1]]) |
| ; LDEXP32-NEXT: ret float [[LDEXPF]] |
| ; |
| ; LDEXP16-LABEL: @test_simplify10( |
| ; LDEXP16-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16 |
| ; LDEXP16-NEXT: [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 [[TMP1]]) |
| ; LDEXP16-NEXT: ret float [[LDEXPF]] |
| ; |
| ; NOLDEXPF-LABEL: @test_simplify10( |
| ; NOLDEXPF-NEXT: [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float |
| ; NOLDEXPF-NEXT: [[RET:%.*]] = call float @llvm.exp2.f32(float [[CONV]]) |
| ; NOLDEXPF-NEXT: ret float [[RET]] |
| ; |
| ; NOLDEXP-LABEL: @test_simplify10( |
| ; NOLDEXP-NEXT: [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float |
| ; NOLDEXP-NEXT: [[RET:%.*]] = call float @llvm.exp2.f32(float [[CONV]]) |
| ; NOLDEXP-NEXT: ret float [[RET]] |
| ; |
| %conv = uitofp i8 %x to float |
| %ret = call float @llvm.exp2.f32(float %conv) |
| ret float %ret |
| } |