1 files changed, 91 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/call-optimization.ll b/test/CodeGen/Mips/call-optimization.ll
new file mode 100644
index 0000000..bfa09ea
--- /dev/null
+++ b/test/CodeGen/Mips/call-optimization.ll
@@ -0,0 +1,91 @@
+; RUN: llc -march=mipsel -disable-mips-delay-filler < %s | \
+; RUN:  FileCheck %s -check-prefix=O32
+; RUN: llc -march=mipsel -mips-load-target-from-got=false \
+; RUN:  -disable-mips-delay-filler < %s | FileCheck %s -check-prefix=O32-LOADTGT
+
+@gd1 = common global double 0.000000e+00, align 8
+@gd2 = common global double 0.000000e+00, align 8
+
+; O32-LABEL: caller3:
+; O32-DAG:   lw $25, %call16(callee3)
+; O32-DAG:   move $gp
+; O32:       jalr $25
+; O32-NOT:   move $gp
+; O32:       lw $25, %call16(callee3)
+; O32-NOT:   move $gp
+; O32:       jalr $25
+; O32-NOT:   move $gp
+; O32:       lw $25, %call16(callee3)
+; O32-NOT:   move $gp
+; O32:       jalr $25
+
+; O32-LOADTGT-LABEL: caller3:
+; O32-LOADTGT-DAG:   lw $25, %call16(callee3)
+; O32-LOADTGT-DAG:   move $gp
+; O32-LOADTGT:       jalr $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       move $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       jalr $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       move $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       jalr $25
+
+define void @caller3(i32 %n) {
+entry:
+  tail call void @callee3()
+  tail call void @callee3()
+  %tobool1 = icmp eq i32 %n, 0
+  br i1 %tobool1, label %while.end, label %while.body
+
+while.body:
+  %n.addr.02 = phi i32 [ %dec, %while.body ], [ %n, %entry ]
+  %dec = add nsw i32 %n.addr.02, -1
+  tail call void @callee3()
+  %tobool = icmp eq i32 %dec, 0
+  br i1 %tobool, label %while.end, label %while.body
+
+while.end:
+  ret void
+}
+
+declare void @callee3()
+
+; O32-LABEL: caller4:
+; O32-DAG:   lw $25, %call16(ceil)
+; O32-DAG:   move $gp
+; O32:       jalr $25
+; O32-NOT:   move $gp
+; O32:       lw $25, %call16(ceil)
+; O32-NOT:   move $gp
+; O32:       jalr $25
+; O32-NOT:   move $gp
+; O32:       lw $25, %call16(ceil)
+; O32-NOT:   move $gp
+; O32:       jalr $25
+
+; O32-LOADTGT-LABEL: caller4:
+; O32-LOADTGT-DAG:   lw $25, %call16(ceil)
+; O32-LOADTGT-DAG:   move $gp
+; O32-LOADTGT:       jalr $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       move $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       jalr $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       move $25
+; O32-LOADTGT-NOT:   move $gp
+; O32-LOADTGT:       jalr $25
+
+define void @caller4(double %d) {
+entry:
+  %call = tail call double @ceil(double %d)
+  %call1 = tail call double @ceil(double %call)
+  store double %call1, double* @gd2, align 8
+  %call2 = tail call double @ceil(double %call1)
+  store double %call2, double* @gd1, align 8
+  ret void
+}
+
+declare double @ceil(double)