[PATCH] D107413: [AArch64][GlobalISel] Widen G_FPTO*I before clamping

[Jessica Paquette via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG7d97de60b3ec: [AArch64][GlobalISel] Widen G_FPTO*I before clamping (authored by paquette).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107413/new/

https://reviews.llvm.org/D107413

Files:
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-fptoi.mir


Index: llvm/test/CodeGen/AArch64/GlobalISel/legalize-fptoi.mir
===================================================================
--- llvm/test/CodeGen/AArch64/GlobalISel/legalize-fptoi.mir
+++ llvm/test/CodeGen/AArch64/GlobalISel/legalize-fptoi.mir
@@ -266,3 +266,48 @@
     %1:_(s128) = G_FPTOSI %0
     $q0 = COPY %1
 ...
+---
+name:            test_fptosi_s88_s88
+body: |
+  bb.0:
+    liveins: $x0
+    ; CHECK-LABEL: name: test_fptosi_s88_s88
+    ; CHECK: [[DEF:%[0-9]+]]:_(s88) = G_IMPLICIT_DEF
+    ; CHECK: [[FPTOSI:%[0-9]+]]:_(s128) = G_FPTOSI [[DEF]](s88)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s88) = G_TRUNC [[FPTOSI]](s128)
+    ; CHECK: %trunc:_(s64) = G_TRUNC [[TRUNC]](s88)
+    ; CHECK: $x0 = COPY %trunc(s64)
+    %0:_(s88) = G_IMPLICIT_DEF
+    %1:_(s88) = G_FPTOSI %0
+    %trunc:_(s64) = G_TRUNC %1
+    $x0 = COPY %trunc
+...
+---
+name:            test_fptosi_s88_s64
+body: |
+  bb.0:
+    liveins: $x0
+    ; CHECK-LABEL: name: test_fptosi_s88_s64
+    ; CHECK: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
+    ; CHECK: [[FPTOSI:%[0-9]+]]:_(s128) = G_FPTOSI [[DEF]](s64)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s88) = G_TRUNC [[FPTOSI]](s128)
+    ; CHECK: %trunc:_(s64) = G_TRUNC [[TRUNC]](s88)
+    ; CHECK: $x0 = COPY %trunc(s64)
+    %0:_(s64) = G_IMPLICIT_DEF
+    %1:_(s88) = G_FPTOSI %0
+    %trunc:_(s64) = G_TRUNC %1
+    $x0 = COPY %trunc
+...
+---
+name:            test_fptosi_s64_s88
+body: |
+  bb.0:
+    liveins: $x0
+    ; CHECK-LABEL: name: test_fptosi_s64_s88
+    ; CHECK: [[DEF:%[0-9]+]]:_(s88) = G_IMPLICIT_DEF
+    ; CHECK: [[FPEXT:%[0-9]+]]:_(s128) = G_FPEXT [[DEF]](s88)
+    ; CHECK: [[FPTOSI:%[0-9]+]]:_(s64) = G_FPTOSI [[FPEXT]](s128)
+    ; CHECK: $x0 = COPY [[FPTOSI]](s64)
+    %0:_(s88) = G_IMPLICIT_DEF
+    %1:_(s64) = G_FPTOSI %0
+    $x0 = COPY %1
Index: llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
===================================================================
--- llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
+++ llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
@@ -459,10 +459,10 @@
   // Conversions
   getActionDefinitionsBuilder({G_FPTOSI, G_FPTOUI})
       .legalForCartesianProduct({s32, s64, v2s64, v4s32, v2s32})
-      .clampScalar(0, s32, s64)
       .widenScalarToNextPow2(0)
-      .clampScalar(1, s32, s64)
-      .widenScalarToNextPow2(1);
+      .clampScalar(0, s32, s64)
+      .widenScalarToNextPow2(1)
+      .clampScalar(1, s32, s64);
 
   getActionDefinitionsBuilder({G_SITOFP, G_UITOFP})
       .legalForCartesianProduct({s32, s64, v2s64, v4s32, v2s32})


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D107413.364176.patch
Type: text/x-patch
Size: 2559 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20210804/39d8662c/attachment.bin>