[llvm] [AMDGPU] Allocate i1 argument to SGPRs (PR #72461)

[Jun Wang via llvm-commits]

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@@ -0,0 +1,279 @@
+; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+; RUN: llc -global-isel -stop-after=irtranslator -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs -o - %s | FileCheck -check-prefixes=GFX9 -enable-var-scope %s
+; RUN: llc -global-isel -stop-after=irtranslator -mtriple=amdgcn -mcpu=gfx1100 -verify-machineinstrs -o - %s | FileCheck -check-prefixes=GFX11 -enable-var-scope %s
+
+define i1 @i1_func_void() {
+; GFX9-LABEL: name: i1_func_void
+; GFX9: bb.1 (%ir-block.0):
+; GFX9-NEXT:    [[DEF:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
+; GFX9-NEXT:    [[LOAD:%[0-9]+]]:_(s1) = G_LOAD [[DEF]](p1) :: (load (s1) from `ptr addrspace(1) undef`, addrspace 1)
+; GFX9-NEXT:    $sgpr0_sgpr1 = COPY [[LOAD]](s1)
+; GFX9-NEXT:    SI_RETURN
+;
+; GFX11-LABEL: name: i1_func_void
+; GFX11: bb.1 (%ir-block.0):
+; GFX11-NEXT:    [[DEF:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
+; GFX11-NEXT:    [[LOAD:%[0-9]+]]:_(s1) = G_LOAD [[DEF]](p1) :: (load (s1) from `ptr addrspace(1) undef`, addrspace 1)
+; GFX11-NEXT:    [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[LOAD]](s1)
+; GFX11-NEXT:    [[INTRIN:%[0-9]+]]:_(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), [[ANYEXT]](s32)
+; GFX11-NEXT:    $sgpr0 = COPY [[INTRIN]](s32)
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jwanggit86 wrote:

Done.

https://github.com/llvm/llvm-project/pull/72461