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llvm-mirror/test/CodeGen/AArch64/large-consts.ll
Tim Northover 2fa51b50b7 AArch64/ARM64: only mangle MOVZ/MOVN during encoding when needed
Sometimes we need emit the bits that would actually be a MOVN when producing a
relocated MOVZ instruction (don't ask). But not always, a check which ARM64 got
wrong until now.

llvm-svn: 206289
2014-04-15 14:00:15 +00:00

20 lines
1.2 KiB
LLVM

; RUN: llc -mtriple=aarch64-linux-gnu -o - %s -code-model=large -show-mc-encoding | FileCheck %s --check-prefix=CHECK-AARCH64
; RUN: llc -mtriple=arm64-linux-gnu -o - %s -code-model=large -show-mc-encoding | FileCheck %s --check-prefix=CHECK-ARM64
; Make sure the shift amount is encoded into the instructions by LLVM because
; it's not the linker's job to put it there.
define double @foo() {
; CHECK-AARCH64: movz [[CPADDR:x[0-9]+]], #:abs_g3:.LCPI0_0 // encoding: [A,A,0xe0'A',0xd2'A']
; CHECK-AARCH64: movk [[CPADDR]], #:abs_g2_nc:.LCPI0_0 // encoding: [A,A,0xc0'A',0xf2'A']
; CHECK-AARCH64: movk [[CPADDR]], #:abs_g1_nc:.LCPI0_0 // encoding: [A,A,0xa0'A',0xf2'A']
; CHECK-AARCH64: movk [[CPADDR]], #:abs_g0_nc:.LCPI0_0 // encoding: [A,A,0x80'A',0xf2'A']
; CHECK-ARM64: movz [[CPADDR:x[0-9]+]], #:abs_g3:.LCPI0_0 // encoding: [0bAAA01000,A,0b111AAAAA,0xd2]
; CHECK-ARM64: movk [[CPADDR]], #:abs_g2_nc:.LCPI0_0 // encoding: [0bAAA01000,A,0b110AAAAA,0xf2]
; CHECK-ARM64: movk [[CPADDR]], #:abs_g1_nc:.LCPI0_0 // encoding: [0bAAA01000,A,0b101AAAAA,0xf2]
; CHECK-ARM64: movk [[CPADDR]], #:abs_g0_nc:.LCPI0_0 // encoding: [0bAAA01000,A,0b100AAAAA,0xf2]
ret double 3.14159
}