[NFC] [PowerPC] Move i1-to-fp tests and use script

Author: ecnelises

llvm/test/CodeGen/PowerPC/i1-to-double.ll

@@ -1,17 +1,78 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -verify-machineinstrs -mcpu=ppc32 -mtriple=powerpc-unknown-linux-gnu < %s | FileCheck %s
+
 define double @test(i1 %X) {
-        %Y = uitofp i1 %X to double
-        ret double %Y
+; CHECK-LABEL: test:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    li 4, .LCPI0_0@l
+; CHECK-NEXT:    andi. 3, 3, 1
+; CHECK-NEXT:    addis 3, 4, .LCPI0_0@ha
+; CHECK-NEXT:    li 4, .LCPI0_1@l
+; CHECK-NEXT:    addis 4, 4, .LCPI0_1@ha
+; CHECK-NEXT:    bc 12, 1, .LBB0_1
+; CHECK-NEXT:    b .LBB0_2
+; CHECK-NEXT:  .LBB0_1:
+; CHECK-NEXT:    addi 3, 4, 0
+; CHECK-NEXT:  .LBB0_2:
+; CHECK-NEXT:    lfs 1, 0(3)
+; CHECK-NEXT:    blr
+  %Y = uitofp i1 %X to double
+  ret double %Y
+}
+
+; Verify the cases won't crash because of missing chains
+
+@foo = dso_local global double 0.000000e+00, align 8
+
+define double @u1tofp(i1 %i, double %d) #0 {
+; CHECK-LABEL: u1tofp:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    li 4, .LCPI1_0@l
+; CHECK-NEXT:    andi. 3, 3, 1
+; CHECK-NEXT:    addis 3, 4, .LCPI1_0@ha
+; CHECK-NEXT:    li 4, .LCPI1_1@l
+; CHECK-NEXT:    addis 4, 4, .LCPI1_1@ha
+; CHECK-NEXT:    bc 12, 1, .LBB1_1
+; CHECK-NEXT:    b .LBB1_2
+; CHECK-NEXT:  .LBB1_1: # %entry
+; CHECK-NEXT:    addi 3, 4, 0
+; CHECK-NEXT:  .LBB1_2: # %entry
+; CHECK-NEXT:    fmr 0, 1
+; CHECK-NEXT:    lfs 1, 0(3)
+; CHECK-NEXT:    lis 3, foo@ha
+; CHECK-NEXT:    stfd 0, foo@l(3)
+; CHECK-NEXT:    blr
+entry:
+  %conv = tail call double @llvm.experimental.constrained.uitofp.f64.i1(i1 %i, metadata !"round.dynamic", metadata !"fpexcept.strict") #0
+  store volatile double %d, double* @foo, align 8
+  ret double %conv
+}
+
+define double @s1tofp(i1 %i, double %d) #0 {
+; CHECK-LABEL: s1tofp:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    li 4, .LCPI2_0@l
+; CHECK-NEXT:    andi. 3, 3, 1
+; CHECK-NEXT:    addis 3, 4, .LCPI2_0@ha
+; CHECK-NEXT:    li 4, .LCPI2_1@l
+; CHECK-NEXT:    addis 4, 4, .LCPI2_1@ha
+; CHECK-NEXT:    bc 12, 1, .LBB2_1
+; CHECK-NEXT:    b .LBB2_2
+; CHECK-NEXT:  .LBB2_1: # %entry
+; CHECK-NEXT:    addi 3, 4, 0
+; CHECK-NEXT:  .LBB2_2: # %entry
+; CHECK-NEXT:    fmr 0, 1
+; CHECK-NEXT:    lfs 1, 0(3)
+; CHECK-NEXT:    lis 3, foo@ha
+; CHECK-NEXT:    stfd 0, foo@l(3)
+; CHECK-NEXT:    blr
+entry:
+  %conv = tail call double @llvm.experimental.constrained.sitofp.f64.i1(i1 %i, metadata !"round.dynamic", metadata !"fpexcept.strict") #0
+  store volatile double %d, double* @foo, align 8
+  ret double %conv
 }
 
-; CHECK-LABEL: @test
-; CHECK-DAG: addis 3, 4, .LCPI
-; CHECK-DAG: addis 4, 4, .LCPI
-; CHECK-DAG: andi. {{[0-9]+}}, 3, 1
-; CHECK-NEXT: bc 12, 1, [[TRUE:.LBB[0-9]+]]
-; CHECK-NEXT: b [[SUCCESSOR:.LBB[0-9]+]]
-; CHECK-NEXT: [[TRUE]]
-; CHECK-NEXT: addi 3, 4, 0
-; CHECK-NEXT: [[SUCCESSOR]]
-; CHECK-NEXT: lfs 1, 0(3)
-; CHECK-NEXT: blr
+declare double @llvm.experimental.constrained.uitofp.f64.i1(i1, metadata, metadata)
+declare double @llvm.experimental.constrained.sitofp.f64.i1(i1, metadata, metadata)
+
+attributes #0 = { strictfp }