6cb0d23f2e
This fixes a verifier error in the testcase from bug 47619.
The stack passed s3 value was widened to 4-bytes, and producing a
4-byte memory access with a < 1 byte result type. We need to either
widen the result type or narrow the access size. This copies the code
directly from the AMDGPU handling, which narrows the load size. I
don't like that every target has to handle this, but this is currently
broken on the 11 release branch and this is the simplest fix.
This reverts commit 42bfa7c63b.
27 lines
1.3 KiB
LLVM
27 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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; RUN: llc -global-isel -mtriple=aarch64-unknown-unknown -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s
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; Make sure the i3 %arg8 value is correctly handled. This was trying
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; to use MVT for EVT values passed on the stack and asserting before
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; b98f902f1877c3d679f77645a267edc89ffcd5d6
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define i3 @bug47619(i64 %arg, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %arg5, i64 %arg6, i64 %arg7, i3 %arg8) {
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; CHECK-LABEL: name: bug47619
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; CHECK: bb.1.bb:
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; CHECK: liveins: $x0, $x1, $x2, $x3, $x4, $x5, $x6, $x7
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; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
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; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
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; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $x2
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; CHECK: [[COPY3:%[0-9]+]]:_(s64) = COPY $x3
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; CHECK: [[COPY4:%[0-9]+]]:_(s64) = COPY $x4
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; CHECK: [[COPY5:%[0-9]+]]:_(s64) = COPY $x5
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; CHECK: [[COPY6:%[0-9]+]]:_(s64) = COPY $x6
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; CHECK: [[COPY7:%[0-9]+]]:_(s64) = COPY $x7
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; CHECK: [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0
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; CHECK: [[LOAD:%[0-9]+]]:_(s3) = G_LOAD [[FRAME_INDEX]](p0) :: (invariant load 1 from %fixed-stack.0, align 16)
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; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[LOAD]](s3)
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; CHECK: $w0 = COPY [[ANYEXT]](s32)
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; CHECK: RET_ReallyLR implicit $w0
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bb:
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ret i3 %arg8
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}
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