[llvm] r279844 - GlobalISel: mark G_FCMP legal on float & double.

[Tim Northover via llvm-commits]

Author: tnorthover
Date: Fri Aug 26 12:46:19 2016
New Revision: 279844

URL: http://llvm.org/viewvc/llvm-project?rev=279844&view=rev
Log:
GlobalISel: mark G_FCMP legal on float & double.

Added:
    llvm/trunk/test/CodeGen/AArch64/GlobalISel/legalize-fcmp.mir
Modified:
    llvm/trunk/lib/Target/AArch64/AArch64MachineLegalizer.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64MachineLegalizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64MachineLegalizer.cpp?rev=279844&r1=279843&r2=279844&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64MachineLegalizer.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64MachineLegalizer.cpp Fri Aug 26 12:46:19 2016
@@ -97,6 +97,10 @@ AArch64MachineLegalizer::AArch64MachineL
     setAction({G_ICMP, 1, Ty}, WidenScalar);
   }
 
+  setAction({G_FCMP, s1}, Legal);
+  setAction({G_FCMP, 1, s32}, Legal);
+  setAction({G_FCMP, 1, s64}, Legal);
+
   // Extensions
   for (auto Ty : { s1, s8, s16, s32, s64 }) {
     setAction({G_ZEXT, Ty}, Legal);

Added: llvm/trunk/test/CodeGen/AArch64/GlobalISel/legalize-fcmp.mir
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/GlobalISel/legalize-fcmp.mir?rev=279844&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/GlobalISel/legalize-fcmp.mir (added)
+++ llvm/trunk/test/CodeGen/AArch64/GlobalISel/legalize-fcmp.mir Fri Aug 26 12:46:19 2016
@@ -0,0 +1,35 @@
+# RUN: llc -O0 -run-pass=legalize-mir -global-isel %s -o - 2>&1 | FileCheck %s
+
+--- |
+  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
+  target triple = "aarch64-apple-ios"
+  define void @test_icmp() {
+  entry:
+    ret void
+  }
+...
+
+---
+name:            test_icmp
+registers:
+  - { id: 0, class: _ }
+  - { id: 1, class: _ }
+  - { id: 2, class: _ }
+  - { id: 3, class: _ }
+  - { id: 4, class: _ }
+  - { id: 5, class: _ }
+body: |
+  bb.0.entry:
+    liveins: %x0, %x1, %x2, %x3
+    %0(64) = COPY %x0
+    %1(64) = COPY %x0
+
+    %2(8) = G_TRUNC { s32, s64 } %0
+    %3(8) = G_TRUNC { s32, s64 } %1
+
+    ; CHECK: %4(1) = G_FCMP { s1, s64 } floatpred(oge), %0, %1
+    %4(1) = G_FCMP { s1, s64 } floatpred(oge), %0, %1
+
+    ; CHECK: %5(1) = G_FCMP { s1, s32 } floatpred(uno), %2, %3
+    %5(1) = G_FCMP { s1, s32 } floatpred(uno), %2, %3
+...