27 lines
869 B
LLVM
27 lines
869 B
LLVM
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; RUN: llc -mtriple=arm64_32-apple-ios8.0 %s -o - | FileCheck %s
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; We're provoking LocalStackSlotAllocation to create some shared frame bases
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; here: it wants multiple <fi#N> using instructions that can be satisfied by a
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; single base, but not within the addressing-mode.
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;
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; When that happens it's important that we don't mix our pointer sizes
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; (e.g. try to create an ldr from a w-register base).
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define i8 @test_register_wrangling() {
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; CHECK-LABEL: test_register_wrangling:
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; CHECK: add [[TMP:x[0-9]+]], sp,
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; CHECK: add x[[BASE:[0-9]+]], [[TMP]],
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; CHECK: ldrb {{w[0-9]+}}, [x[[BASE]], #1]
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; CHECK: ldrb {{w[0-9]+}}, [x[[BASE]]]
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%var1 = alloca i8, i32 4100
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%var3 = alloca i8
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%dummy = alloca i8, i32 4100
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%var1p1 = getelementptr i8, i8* %var1, i32 1
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%val1 = load i8, i8* %var1
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%val2 = load i8, i8* %var3
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%sum = add i8 %val1, %val2
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ret i8 %sum
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}
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