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https://github.com/c64scene-ar/llvm-6502.git
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8d3bf10dd3
Fold simple offsets into the memory operation: add x0, x0, #8 ldr x0, [x0] --> ldr x0, [x0, #8] Fixes <rdar://problem/17887945>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214545 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
563 B
LLVM
24 lines
563 B
LLVM
; RUN: llc -fast-isel -fast-isel-abort -mtriple=arm64-apple-darwin < %s | FileCheck %s
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; Test simple constant offset.
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define i64 @test_load1(i64 %a) {
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; CHECK-LABEL: test_load1
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; CHECK: ldr x0, [x0, #16]
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%1 = add i64 %a, 16
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%2 = inttoptr i64 %1 to i64*
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%3 = load i64* %2
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ret i64 %3
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}
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; Test large constant offset.
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define i64 @test_load2(i64 %a) {
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; CHECK-LABEL: test_load2
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; CHECK: add [[REG:x[0-9]+]], x0, {{x[0-9]+}}
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; CHECK: ldr x0, {{\[}}[[REG]]{{\]}}
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%1 = add i64 %a, 16777216
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%2 = inttoptr i64 %1 to i64*
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%3 = load i64* %2
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ret i64 %3
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}
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