1 files changed, 263 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/PowerPC/ppc64-P9-mod.ll b/llvm/test/CodeGen/PowerPC/ppc64-P9-mod.ll
new file mode 100644
index 00000000000..46e347becbb
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/ppc64-P9-mod.ll
@@ -0,0 +1,263 @@
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 -verify-machineinstrs | FileCheck %s
+; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr9 -verify-machineinstrs | FileCheck %s
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 | FileCheck %s -check-prefix=CHECK-PWR8 -implicit-check-not mod[us][wd]
+
+@mod_resultsw = common local_unnamed_addr global i32 0, align 4
+@mod_resultud = common local_unnamed_addr global i64 0, align 8
+@div_resultsw = common local_unnamed_addr global i32 0, align 4
+@mod_resultuw = common local_unnamed_addr global i32 0, align 4
+@div_resultuw = common local_unnamed_addr global i32 0, align 4
+@div_resultsd = common local_unnamed_addr global i64 0, align 8
+@mod_resultsd = common local_unnamed_addr global i64 0, align 8
+@div_resultud = common local_unnamed_addr global i64 0, align 8
+
+; Function Attrs: norecurse nounwind
+define void @modulo_sw(i32 signext %a, i32 signext %b) local_unnamed_addr {
+entry:
+  %rem = srem i32 %a, %b
+  store i32 %rem, i32* @mod_resultsw, align 4
+  ret void
+; CHECK-LABEL: modulo_sw
+; CHECK: modsw {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_sw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind readnone
+define zeroext i32 @modulo_uw(i32 zeroext %a, i32 zeroext %b) local_unnamed_addr {
+entry:
+  %rem = urem i32 %a, %b
+  ret i32 %rem
+; CHECK-LABEL: modulo_uw
+; CHECK: moduw {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_uw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind readnone
+define i64 @modulo_sd(i64 %a, i64 %b) local_unnamed_addr {
+entry:
+  %rem = srem i64 %a, %b
+  ret i64 %rem
+; CHECK-LABEL: modulo_sd
+; CHECK: modsd {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_sd
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_ud(i64 %a, i64 %b) local_unnamed_addr {
+entry:
+  %rem = urem i64 %a, %b
+  store i64 %rem, i64* @mod_resultud, align 8
+  ret void
+; CHECK-LABEL: modulo_ud
+; CHECK: modud {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_ud
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_div_sw(i32 signext %a, i32 signext %b) local_unnamed_addr {
+entry:
+  %rem = srem i32 %a, %b
+  store i32 %rem, i32* @mod_resultsw, align 4
+  %div = sdiv i32 %a, %b
+  store i32 %div, i32* @div_resultsw, align 4
+  ret void
+; CHECK-LABEL: modulo_div_sw
+; CHECK-NOT: modsw
+; CHECK: div
+; CHECK-NOT: modsw
+; CHECK: mull
+; CHECK-NOT: modsw
+; CHECK: sub
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_div_sw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_div_abc_sw(i32 signext %a, i32 signext %b, i32 signext %c) local_unnamed_addr {
+entry:
+  %rem = srem i32 %a, %c
+  store i32 %rem, i32* @mod_resultsw, align 4
+  %div = sdiv i32 %b, %c
+  store i32 %div, i32* @div_resultsw, align 4
+  ret void
+; CHECK-LABEL: modulo_div_abc_sw
+; CHECK: modsw {{[0-9]+}}, 3, 5
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_div_abc_sw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_div_uw(i32 zeroext %a, i32 zeroext %b) local_unnamed_addr {
+entry:
+  %rem = urem i32 %a, %b
+  store i32 %rem, i32* @mod_resultuw, align 4
+  %div = udiv i32 %a, %b
+  store i32 %div, i32* @div_resultuw, align 4
+  ret void
+; CHECK-LABEL: modulo_div_uw
+; CHECK-NOT: modsw
+; CHECK: div
+; CHECK-NOT: modsw
+; CHECK: mull
+; CHECK-NOT: modsw
+; CHECK: sub
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_div_uw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_div_swuw(i32 signext %a, i32 signext %b) local_unnamed_addr {
+entry:
+  %rem = srem i32 %a, %b
+  store i32 %rem, i32* @mod_resultsw, align 4
+  %div = udiv i32 %a, %b
+  store i32 %div, i32* @div_resultsw, align 4
+  ret void
+; CHECK-LABEL: modulo_div_swuw
+; CHECK: modsw {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_div_swuw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_div_udsd(i64 %a, i64 %b) local_unnamed_addr {
+entry:
+  %rem = urem i64 %a, %b
+  store i64 %rem, i64* @mod_resultud, align 8
+  %div = sdiv i64 %a, %b
+  store i64 %div, i64* @div_resultsd, align 8
+  ret void
+; CHECK-LABEL: modulo_div_udsd
+; CHECK: modud {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_div_udsd
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @modulo_const32_sw(i32 signext %a) local_unnamed_addr {
+entry:
+  %rem = srem i32 %a, 32
+  store i32 %rem, i32* @mod_resultsw, align 4
+  ret void
+; CHECK-LABEL: modulo_const32_sw
+; CHECK-NOT: modsw
+; CHECK: srawi
+; CHECK-NOT: modsw
+; CHECK: addze
+; CHECK-NOT: modsw
+; CHECK: slwi
+; CHECK-NOT: modsw
+; CHECK: subf
+; CHECK-NOT: modsw
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_const32_sw
+; CHECK-PWR8: srawi
+; CHECK-PWR8: addze
+; CHECK-PWR8: slwi
+; CHECK-PWR8: subf
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind readnone
+define signext i32 @modulo_const3_sw(i32 signext %a) local_unnamed_addr {
+entry:
+  %rem = srem i32 %a, 3
+  ret i32 %rem
+; CHECK-LABEL: modulo_const3_sw
+; CHECK-NOT: modsw
+; CHECK: mull
+; CHECK-NOT: modsw
+; CHECK: sub
+; CHECK-NOT: modsw
+; CHECK: blr
+; CHECK-PWR8-LABEL: modulo_const3_sw
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind readnone
+define signext i32 @const2_modulo_sw(i32 signext %a) local_unnamed_addr {
+entry:
+  %rem = srem i32 2, %a
+  ret i32 %rem
+; CHECK-LABEL: const2_modulo_sw
+; CHECK: modsw {{[0-9]+}}, {{[0-9]+}}, 3
+; CHECK: blr
+; CHECK-PWR8-LABEL: const2_modulo_sw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+; Function Attrs: norecurse nounwind
+; FIXME On power 9 this test will still produce modsw because the divide is in
+; a different block than the remainder. Due to the nature of the SDAG we cannot
+; see the div in the other block.
+define void @blocks_modulo_div_sw(i32 signext %a, i32 signext %b, i32 signext %c) local_unnamed_addr {
+entry:
+  %div = sdiv i32 %a, %b
+  store i32 %div, i32* @div_resultsw, align 4
+  %cmp = icmp sgt i32 %c, 0
+  br i1 %cmp, label %if.then, label %if.end
+
+if.then:                                          ; preds = %entry
+  %rem = srem i32 %a, %b
+  store i32 %rem, i32* @mod_resultsw, align 4
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %entry
+  ret void
+; CHECK-LABEL: blocks_modulo_div_sw
+; CHECK: div
+; CHECK: modsw {{[0-9]+}}, 3, 4
+; CHECK: blr
+; CHECK-PWR8-LABEL: blocks_modulo_div_sw
+; CHECK-PWR8: div
+; CHECK-PWR8: mull
+; CHECK-PWR8: sub
+; CHECK-PWR8: blr
+}
+
+