| ; Expect the constant propagation to evaluate signed and unsigned bit extract. |
| ; RUN: llc -march=hexagon -O2 < %s | FileCheck %s |
| |
| target triple = "hexagon" |
| |
| @x = common global i32 0, align 4 |
| @y = common global i32 0, align 4 |
| |
| define void @foo() #0 { |
| entry: |
| ; extractu(0x000ABCD0, 16, 4) |
| ; should evaluate to 0xABCD (dec 43981) |
| %0 = call i32 @llvm.hexagon.S2.extractu(i32 703696, i32 16, i32 4) |
| ; CHECK: 43981 |
| ; CHECK-NOT: extractu |
| store i32 %0, i32* @x, align 4 |
| ; extract(0x000ABCD0, 16, 4) |
| ; should evaluate to 0xFFFFABCD (dec 4294945741 or -21555) |
| %1 = call i32 @llvm.hexagon.S4.extract(i32 703696, i32 16, i32 4) |
| ; CHECK: -21555 |
| ; CHECK-NOT: extract |
| store i32 %1, i32* @y, align 4 |
| ret void |
| } |
| |
| declare i32 @llvm.hexagon.S2.extractu(i32, i32, i32) #1 |
| |
| declare i32 @llvm.hexagon.S4.extract(i32, i32, i32) #1 |
| |
| attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone } |
