Add LLVM support for remaining integer divide and permute instructions from ISA 2.06

This is the patch corresponding to review:
http://reviews.llvm.org/D8406

It adds some missing instructions from ISA 2.06 to the PPC back end.

llvm-svn: 234546

1 files changed, 54 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/PowerPC/div-e-all.ll b/llvm/test/CodeGen/PowerPC/div-e-all.ll
new file mode 100644
index 00000000000..912deeb2b3e
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/div-e-all.ll
@@ -0,0 +1,54 @@
+; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s
+
+; Function Attrs: nounwind
+define signext i32 @test1() #0 {
+entry:
+  %0 = call i32 @llvm.ppc.divwe(i32 32, i32 16)
+  ret i32 %0
+; CHECK: divwe 3, 4, 3
+}
+
+; Function Attrs: nounwind readnone
+declare i32 @llvm.ppc.divwe(i32, i32) #1
+
+; Function Attrs: nounwind
+define signext i32 @test2() #0 {
+entry:
+  %0 = call i32 @llvm.ppc.divweu(i32 32, i32 16)
+  ret i32 %0
+; CHECK: divweu 3, 4, 3
+}
+
+; Function Attrs: nounwind readnone
+declare i32 @llvm.ppc.divweu(i32, i32) #1
+
+; Function Attrs: nounwind
+define i64 @test3() #0 {
+entry:
+  %0 = call i64 @llvm.ppc.divde(i64 32, i64 16)
+  ret i64 %0
+; CHECK: divde 3, 4, 3
+}
+
+; Function Attrs: nounwind readnone
+declare i64 @llvm.ppc.divde(i64, i64) #1
+
+; Function Attrs: nounwind
+define i64 @test4() #0 {
+entry:
+  %0 = call i64 @llvm.ppc.divdeu(i64 32, i64 16)
+  ret i64 %0
+; CHECK: divdeu 3, 4, 3
+}
+
+; Function Attrs: nounwind readnone
+declare i64 @llvm.ppc.divdeu(i64, i64) #1
+
+attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind readnone }
+
+!llvm.ident = !{!0}
+
+!0 = !{!"clang version 3.7.0 (trunk 231831) (llvm/trunk 231828:231843M)"}