[llvm] [RISCV][GISel] Do libcall for G_FPTOSI, G_FPTOUI when no D or F support (PR #94613)

[Craig Topper via llvm-commits]

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@@ -166,13 +265,27 @@ body:             |
   bb.1:
     liveins: $f10_d
 
-    ; CHECK-LABEL: name: fptosi_s1_s64
-    ; CHECK: liveins: $f10_d
-    ; CHECK-NEXT: {{  $}}
-    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $f10_d
-    ; CHECK-NEXT: [[FPTOSI:%[0-9]+]]:_(s32) = G_FPTOSI [[COPY]](s64)
-    ; CHECK-NEXT: $x10 = COPY [[FPTOSI]](s32)
-    ; CHECK-NEXT: PseudoRET implicit $x10
+    ; CHECK-FLOAT-LABEL: name: fptosi_s1_s64
+    ; CHECK-FLOAT: liveins: $f10_d
+    ; CHECK-FLOAT-NEXT: {{  $}}
+    ; CHECK-FLOAT-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $f10_d
+    ; CHECK-FLOAT-NEXT: [[FPTOSI:%[0-9]+]]:_(s32) = G_FPTOSI [[COPY]](s64)
+    ; CHECK-FLOAT-NEXT: $x10 = COPY [[FPTOSI]](s32)
+    ; CHECK-FLOAT-NEXT: PseudoRET implicit $x10
+    ;
+    ; CHECK-NOFLOAT-LABEL: name: fptosi_s1_s64
+    ; CHECK-NOFLOAT: liveins: $f10_d
+    ; CHECK-NOFLOAT-NEXT: {{  $}}
+    ; CHECK-NOFLOAT-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $f10_d
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topperc wrote:

Something is broken here. We're passing f10_d, but we don't have floating point?

https://github.com/llvm/llvm-project/pull/94613