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Most immediates are printed in Aarch64InstPrinter using 'formatImm' macro, but not all of them. Implementation contains following rules: - floating point immediates are always printed as decimal - signed integer immediates are printed depends on flag settings (for negative values 'formatImm' macro prints the value as i.e -0x01 which may be convenient when imm is an address or offset) - logical immediates are always printed as hex - the 64-bit immediate for advSIMD, encoded in "a🅱️c:d:e:f:g:h" is always printed as hex - the 64-bit immedaite in exception generation instructions like: brk, dcps1, dcps2, dcps3, hlt, hvc, smc, svc is always printed as hex - the rest of immediates is printed depends on availability of -print-imm-hex Signed-off-by: Maciej Gabka <maciej.gabka@arm.com> Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com> Differential Revision: http://reviews.llvm.org/D16929 llvm-svn: 269446
24 lines
689 B
LLVM
24 lines
689 B
LLVM
; RUN: llc -mtriple=arm64-darwin-unknown < %s | FileCheck %s
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%T = type { i32, i32, i32, i32 }
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; Test if the constant base address gets only materialized once.
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define i32 @test1() nounwind {
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; CHECK-LABEL: test1
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; CHECK: movz w8, #1039, lsl #16
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; CHECK-NEXT: movk w8, #49152
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; CHECK-NEXT: ldp w9, w10, [x8, #4]
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; CHECK: ldr w8, [x8, #12]
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%at = inttoptr i64 68141056 to %T*
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%o1 = getelementptr %T, %T* %at, i32 0, i32 1
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%t1 = load i32, i32* %o1
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%o2 = getelementptr %T, %T* %at, i32 0, i32 2
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%t2 = load i32, i32* %o2
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%a1 = add i32 %t1, %t2
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%o3 = getelementptr %T, %T* %at, i32 0, i32 3
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%t3 = load i32, i32* %o3
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%a2 = add i32 %a1, %t3
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ret i32 %a2
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}
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