GlobalISel: mark G_FPEXT legal from float to double.

llvm-svn: 279845

diff --git a/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp b/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp
index ec5f591..0ea8673 100644 (file)
--- a/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp
+++ b/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp
@@ -114,6 +114,9 @@ AArch64MachineLegalizer::AArch64MachineLegalizer() {
     setAction({G_ANYEXT, 1, Ty}, Legal);
   }
 
+  setAction({G_FPEXT, s64}, Legal);
+  setAction({G_FPEXT, 1, s32}, Legal);
+
   // Truncations
   for (auto Ty : { s16, s32 })
     setAction({G_FPTRUNC, Ty}, Legal);

diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/legalize-ext.mir b/llvm/test/CodeGen/AArch64/GlobalISel/legalize-ext.mir
index cb660b7..a7ebc5c 100644 (file)
--- a/llvm/test/CodeGen/AArch64/GlobalISel/legalize-ext.mir
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/legalize-ext.mir
@@ -29,6 +29,8 @@ registers:
   - { id: 14, class: _ }
   - { id: 15, class: _ }
   - { id: 16, class: _ }
+  - { id: 17, class: _ }
+  - { id: 18, class: _ }
 body: |
   bb.0.entry:
     liveins: %x0, %x1, %x2, %x3
@@ -70,4 +72,8 @@ body: |
     ; CHECK: %16(16) = G_ANYEXT { s16, s8 } %2
     %15(8) = G_ZEXT { s8, s1 } %1
     %16(16) = G_ANYEXT { s16, s8 } %2
+
+    ; CHECK: %18(64) = G_FPEXT { s64, s32 } %17
+    %17(32) = G_TRUNC { s32, s64 }  %0
+    %18(64) = G_FPEXT { s64, s32 } %17
 ...