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e8da6d9454
It introduced two regressions on 64-bit big-endian targets running under N32 (MultiSource/Benchmarks/tramp3d-v4/tramp3d-v4, and MultiSource/Applications/kimwitu++/kc) The issue is that on 64-bit targets comparisons such as BEQ compare the whole GPR64 but incorrectly tell the instruction selector that they operate on GPR32's. This leads to the elimination of i32->i64 extensions that are actually required by comparisons to work correctly. There's currently a patch under review that fixes this problem. llvm-svn: 243984
17 lines
577 B
LLVM
17 lines
577 B
LLVM
; RUN: llc < %s -march=mips64 -mcpu=mips3 | FileCheck %s
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; We have to XFAIL this temporarily because of the reversion of r229675.
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; XFAIL: *
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; Currently, the following IR assembly generates a KILL instruction between
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; the bitwise-and instruction and the return instruction. We verify that the
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; delay slot filler ignores such KILL instructions by filling the slot of the
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; return instruction properly.
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define signext i32 @f1(i32 signext %a, i32 signext %b) {
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entry:
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; CHECK: jr $ra
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; CHECK-NEXT: and $2, $4, $5
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%r = and i32 %a, %b
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ret i32 %r
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}
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