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https://github.com/RPCS3/llvm-mirror.git
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bb4f32cc9f
This commit fixes a bug introduced in r301019 where optimizeLogicalImm would replace a logical node's immediate operand that was CSE'd and was also an operand of another node. This commit fixes the bug by replacing the logical node instead of its immediate operand. rdar://problem/32295276 llvm-svn: 303607
84 lines
1.7 KiB
LLVM
84 lines
1.7 KiB
LLVM
; RUN: llc -o - %s -mtriple=aarch64-- | FileCheck %s
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; CHECK-LABEL: and1:
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; CHECK: and {{w[0-9]+}}, w0, #0xfffffffd
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define void @and1(i32 %a, i8* nocapture %p) {
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entry:
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%and = and i32 %a, 253
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%conv = trunc i32 %and to i8
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store i8 %conv, i8* %p, align 1
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ret void
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}
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; (a & 0x3dfd) | 0xffffc000
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;
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; CHECK-LABEL: and2:
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; CHECK: and {{w[0-9]+}}, w0, #0xfdfdfdfd
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define i32 @and2(i32 %a) {
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entry:
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%and = and i32 %a, 15869
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%or = or i32 %and, -16384
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ret i32 %or
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}
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; (a & 0x19) | 0xffffffc0
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;
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; CHECK-LABEL: and3:
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; CHECK: and {{w[0-9]+}}, w0, #0x99999999
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define i32 @and3(i32 %a) {
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entry:
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%and = and i32 %a, 25
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%or = or i32 %and, -64
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ret i32 %or
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}
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; (a & 0xc5600) | 0xfff1f1ff
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;
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; CHECK-LABEL: and4:
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; CHECK: and {{w[0-9]+}}, w0, #0xfffc07ff
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define i32 @and4(i32 %a) {
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entry:
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%and = and i32 %a, 787968
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%or = or i32 %and, -921089
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ret i32 %or
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}
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; Make sure we don't shrink or optimize an XOR's immediate operand if the
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; immediate is -1. Instruction selection turns (and ((xor $mask, -1), $v0)) into
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; a BIC.
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; CHECK-LABEL: xor1:
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; CHECK: orr [[R0:w[0-9]+]], wzr, #0x38
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; CHECK: bic {{w[0-9]+}}, [[R0]], w0, lsl #3
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define i32 @xor1(i32 %a) {
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entry:
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%shl = shl i32 %a, 3
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%xor = and i32 %shl, 56
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%and = xor i32 %xor, 56
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ret i32 %and
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}
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; Check that, when (and %t1, 129) is transformed to (and %t0, 0),
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; (xor %arg, 129) doesn't get transformed to (xor %arg, 0).
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;
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; CHECK-LABEL: PR33100:
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; CHECK: mov w[[R0:[0-9]+]], #129
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; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, x[[R0]]
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define i64 @PR33100(i64 %arg) {
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entry:
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%alloca0 = alloca i64
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store i64 8, i64* %alloca0, align 4
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%t0 = load i64, i64* %alloca0, align 4
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%t1 = shl i64 %arg, %t0
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%and0 = and i64 %t1, 129
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%xor0 = xor i64 %arg, 129
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%t2 = add i64 %and0, %xor0
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ret i64 %t2
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}
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