| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ;RUN: llc < %s -mtriple=riscv64 -mattr=+f -mcpu=sifive-u74 -target-abi=lp64f \ |
| ;RUN: | FileCheck %s --check-prefix=NOFUSION |
| ;RUN: llc < %s -mtriple=riscv64 -mattr=+f,+lui-addi-fusion -mcpu=sifive-u74 \ |
| ;RUN: -target-abi=lp64f | FileCheck %s --check-prefix=FUSION |
| |
| @.str = private constant [4 x i8] c"%f\0A\00", align 1 |
| |
| define void @foo(i32 signext %0, i32 signext %1) { |
| ; NOFUSION-LABEL: foo: |
| ; NOFUSION: # %bb.0: |
| ; NOFUSION-NEXT: lui a0, %hi(.L.str) |
| ; NOFUSION-NEXT: fcvt.s.w fa0, a1 |
| ; NOFUSION-NEXT: addi a0, a0, %lo(.L.str) |
| ; NOFUSION-NEXT: tail bar@plt |
| ; |
| ; FUSION-LABEL: foo: |
| ; FUSION: # %bb.0: |
| ; FUSION-NEXT: fcvt.s.w fa0, a1 |
| ; FUSION-NEXT: lui a0, %hi(.L.str) |
| ; FUSION-NEXT: addi a0, a0, %lo(.L.str) |
| ; FUSION-NEXT: tail bar@plt |
| %3 = sitofp i32 %1 to float |
| tail call void @bar(ptr @.str, float %3) |
| ret void |
| } |
| |
| declare void @bar(ptr, float) |
| |
| ; Test that we prefer lui+addiw over li+slli. |
| define i32 @test_matint() { |
| ; NOFUSION-LABEL: test_matint: |
| ; NOFUSION: # %bb.0: |
| ; NOFUSION-NEXT: li a0, 1 |
| ; NOFUSION-NEXT: slli a0, a0, 11 |
| ; NOFUSION-NEXT: ret |
| ; |
| ; FUSION-LABEL: test_matint: |
| ; FUSION: # %bb.0: |
| ; FUSION-NEXT: lui a0, 1 |
| ; FUSION-NEXT: addiw a0, a0, -2048 |
| ; FUSION-NEXT: ret |
| ret i32 2048 |
| } |