[llvm] [GlobalISel] Import samesign flag (PR #113090)

[Antonio Frighetto via llvm-commits]

Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/113090 at github.com>


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@@ -0,0 +1,50 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple aarch64 -run-pass=none -verify-machineinstrs %s -o - | FileCheck %s
+
+
+---
+name:            icmp_samesign
+body:             |
+  bb.0:
+    liveins: $w0, $w1
+
+    ; CHECK-LABEL: name: icmp_samesign
+    ; CHECK: liveins: $w0, $w1
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: %x:_(s32) = COPY $w0
+    ; CHECK-NEXT: %y:_(s32) = COPY $w1
+    ; CHECK-NEXT: %cmp:_(s1) = samesign G_ICMP intpred(eq), %y(s32), %y
+    ; CHECK-NEXT: %zext:_(s32) = G_ZEXT %cmp(s1)
+    ; CHECK-NEXT: $w0 = COPY %zext(s32)
+    ; CHECK-NEXT: RET_ReallyLR implicit $w0
+    %x:_(s32) = COPY $w0
+    %y:_(s32) = COPY $w1
+    %cmp:_(s1) = samesign G_ICMP intpred(eq), %y:_(s32), %y:_
+    %zext:_(s32) = G_ZEXT %cmp:_(s1)
+    $w0 = COPY %zext
+    RET_ReallyLR implicit $w0
+
+
+...
+---
+name:            icmp_differentsign
+body:             |
+  bb.0:
+    liveins: $w0, $w1
+
+    ; CHECK-LABEL: name: icmp_differentsign
+    ; CHECK: liveins: $w0, $w1
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: %x:_(s32) = COPY $w0
+    ; CHECK-NEXT: %y:_(s32) = COPY $w1
+    ; CHECK-NEXT: %cmp:_(s1) = G_ICMP intpred(eq), %y(s32), %y
+    ; CHECK-NEXT: %zext:_(s32) = G_ZEXT %cmp(s1)
+    ; CHECK-NEXT: $w0 = COPY %zext(s32)
+    ; CHECK-NEXT: RET_ReallyLR implicit $w0
+    %x:_(s32) = COPY $w0
+    %y:_(s32) = COPY $w1
+    %cmp:_(s1) = G_ICMP intpred(eq), %y:_(s32), %y:_
+    %zext:_(s32) = G_ZEXT %cmp:_(s1)
+    $w0 = COPY %zext
+    RET_ReallyLR implicit $w0
+---
----------------
antoniofrighetto wrote:

This test needs to go under `MIR/AArch64`.

https://github.com/llvm/llvm-project/pull/113090