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8b6ab03c03
When a stack offset was too big to materialize in a single instruction, we were
trying to do it in stages:
adds xD, sp, #imm
adds xD, xD, #imm
Unfortunately, if xD is xzr then the second instruction doesn't exist and
wouldn't do what was needed if it did. Instead we can use a temporary register
for all but the last addition.
24 lines
407 B
LLVM
24 lines
407 B
LLVM
; RUN: llc -mtriple=arm64-apple-ios %s -o - | FileCheck %s
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define void @foo() {
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; CHECK-LABEL: foo:
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; CHECK: adds [[TMP:x[0-9]+]], sp,
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; CHECK: cmn [[TMP]],
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%var = alloca i32, i32 12
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%var2 = alloca i32, i32 1030
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%tst = icmp eq i32* %var, null
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br i1 %tst, label %true, label %false
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true:
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call void @bar()
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ret void
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false:
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call void @baz()
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ret void
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}
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declare void @bar()
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declare void @baz()
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