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1; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -enable-tail-merge=0 | grep bl.*baz | count 22; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -enable-tail-merge=0 | grep bl.*quux | count 23; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep bl.*baz | count 14; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep bl.*quux | count 15; Check that tail merging is the default on ppc, and that -enable-tail-merge works.6 7; ModuleID = 'tail.c'8target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"9;; target triple = "i686-apple-darwin8"10 11define i32 @f(i32 %i, i32 %q) {12entry:13 %i_addr = alloca i32 ; <ptr> [#uses=2]14 %q_addr = alloca i32 ; <ptr> [#uses=2]15 %retval = alloca i32, align 4 ; <ptr> [#uses=1]16 store i32 %i, ptr %i_addr17 store i32 %q, ptr %q_addr18 %tmp = load i32, ptr %i_addr ; <i32> [#uses=1]19 %tmp1 = icmp ne i32 %tmp, 0 ; <i1> [#uses=1]20 %tmp12 = zext i1 %tmp1 to i8 ; <i8> [#uses=1]21 %toBool = icmp ne i8 %tmp12, 0 ; <i1> [#uses=1]22 br i1 %toBool, label %cond_true, label %cond_false23 24cond_true: ; preds = %entry25 %tmp3 = call i32 (...) @bar( ) ; <i32> [#uses=0]26 %tmp4 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0]27 %tmp7 = load i32, ptr %q_addr ; <i32> [#uses=1]28 %tmp8 = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1]29 %tmp89 = zext i1 %tmp8 to i8 ; <i8> [#uses=1]30 %toBool10 = icmp ne i8 %tmp89, 0 ; <i1> [#uses=1]31 br i1 %toBool10, label %cond_true11, label %cond_false1532 33cond_false: ; preds = %entry34 %tmp5 = call i32 (...) @foo( ) ; <i32> [#uses=0]35 %tmp6 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0]36 %tmp27 = load i32, ptr %q_addr ; <i32> [#uses=1]37 %tmp28 = icmp ne i32 %tmp27, 0 ; <i1> [#uses=1]38 %tmp289 = zext i1 %tmp28 to i8 ; <i8> [#uses=1]39 %toBool210 = icmp ne i8 %tmp289, 0 ; <i1> [#uses=1]40 br i1 %toBool210, label %cond_true11, label %cond_false1541 42cond_true11: ; preds = %cond_next43 %tmp13 = call i32 (...) @foo( ) ; <i32> [#uses=0]44 %tmp14 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0]45 br label %cond_next1846 47cond_false15: ; preds = %cond_next48 %tmp16 = call i32 (...) @bar( ) ; <i32> [#uses=0]49 %tmp17 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0]50 br label %cond_next1851 52cond_next18: ; preds = %cond_false15, %cond_true1153 %tmp19 = call i32 (...) @bar( ) ; <i32> [#uses=0]54 br label %return55 56return: ; preds = %cond_next1857 %retval20 = load i32, ptr %retval ; <i32> [#uses=1]58 ret i32 %retval2059}60 61declare i32 @bar(...)62 63declare i32 @baz(...)64 65declare i32 @foo(...)66 67declare i32 @quux(...)68