forked from OSchip/llvm-project
50 lines
1.8 KiB
LLVM
50 lines
1.8 KiB
LLVM
; RUN: llc < %s -march=c | \
|
|
; RUN: grep __BITCAST | count 14
|
|
|
|
define i32 @test1(float %F) {
|
|
%X = bitcast float %F to i32 ; <i32> [#uses=1]
|
|
ret i32 %X
|
|
}
|
|
|
|
define float @test2(i32 %I) {
|
|
%X = bitcast i32 %I to float ; <float> [#uses=1]
|
|
ret float %X
|
|
}
|
|
|
|
define i64 @test3(double %D) {
|
|
%X = bitcast double %D to i64 ; <i64> [#uses=1]
|
|
ret i64 %X
|
|
}
|
|
|
|
define double @test4(i64 %L) {
|
|
%X = bitcast i64 %L to double ; <double> [#uses=1]
|
|
ret double %X
|
|
}
|
|
|
|
define double @test5(double %D) {
|
|
%X = bitcast double %D to double ; <double> [#uses=1]
|
|
%Y = fadd double %X, 2.000000e+00 ; <double> [#uses=1]
|
|
%Z = bitcast double %Y to i64 ; <i64> [#uses=1]
|
|
%res = bitcast i64 %Z to double ; <double> [#uses=1]
|
|
ret double %res
|
|
}
|
|
|
|
define float @test6(float %F) {
|
|
%X = bitcast float %F to float ; <float> [#uses=1]
|
|
%Y = fadd float %X, 2.000000e+00 ; <float> [#uses=1]
|
|
%Z = bitcast float %Y to i32 ; <i32> [#uses=1]
|
|
%res = bitcast i32 %Z to float ; <float> [#uses=1]
|
|
ret float %res
|
|
}
|
|
|
|
define i32 @main(i32 %argc, i8** %argv) {
|
|
%a = call i32 @test1( float 0x400921FB40000000 ) ; <i32> [#uses=2]
|
|
%b = call float @test2( i32 %a ) ; <float> [#uses=0]
|
|
%c = call i64 @test3( double 0x400921FB4D12D84A ) ; <i64> [#uses=1]
|
|
%d = call double @test4( i64 %c ) ; <double> [#uses=0]
|
|
%e = call double @test5( double 7.000000e+00 ) ; <double> [#uses=0]
|
|
%f = call float @test6( float 7.000000e+00 ) ; <float> [#uses=0]
|
|
ret i32 %a
|
|
}
|
|
|